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Underwater Rahi Study

The Onu-Metru Project That Killed Its Handlers

An Onu-Metru Archives project to study a group of ancient sea Rahi recovered off the coast, ended on Turaga Dume's cull order, and revived as a fugitive expedition in the subterranean waterways beneath Metru Nui.

By Joe Garratt

The Underwater RahiRahiThe Rahi were the biomechanical wildlife of the Matoran Universe, built largely by the Brotherhood of Makuta, ranging from background fauna to engineered war beasts. Study was an Onu-MetruOnu-MetruThe deep archive-city that made mining and historical records preservation the beating heart of Metru Nui. ArchivesThe Archives of Metru NuiThe Archives of Onu-Metru were the central repository of Matoran knowledge and Rahi specimens, maintained by the Archivist Corps beneath the city's surface. project to assess a group of ancient sea RahiRahiThe Rahi were the biomechanical wildlife of the Matoran Universe, built largely by the Brotherhood of Makuta, ranging from background fauna to engineered war beasts. recovered near the coast of Metru NuiMetru NuiThe city beneath Mata Nui functions as the Great Spirit's brain, housing the Matoran whose labor keeps the god alive., assigned by TuragaTuragaFormer Toa who fulfilled their destiny and transformed into leaders. Turaga wield Noble Kanohi masks and weakened elemental powers, guiding their communities. DumeDumeDume is a Turaga of Fire and the former ruler of Metru Nui, distinguished by his red and black coloring and the Noble Kanohi Kiril, the Mask of Regeneration. As a member of the Turaga of Metru Nui, he wields a Staff of Office and commands a weakened mastery of Fire. He later resides on the reformed Spherus Magna. to a three-ArchivistArchivistA Matoran keeper of records and relics, the Archivist held one of Metru Nui's deadliest jobs. team of WhenuaWhenuaToa Metru of Earth and later Turaga of Onu-Koro, formerly an Onu-Metru archivist whose career in the Archives shaped his role across the rescue of Metru Nui and the long residency on Mata Nui., OnepuOnepuOnepu is an Onu-Matoran and the High Commander of the Ussalry, bearing a Pakari and wearing the purple and black colors of his kind. Connected to the element of Earth, he resides on Spherus Magna., and MavrahMavrahA Metru Nui Archivist who fled his city rather than let Turaga Dume cull his pet sea Rahi, drowned in a feeding frenzy a thousand years before the Great Cataclysm, and was rediscovered alive aboard the Red Star.. The official study was terminated when the RahiRahiThe Rahi were the biomechanical wildlife of the Matoran Universe, built largely by the Brotherhood of Makuta, ranging from background fauna to engineered war beasts. proved more dangerous than containment could budget for, DumeDumeDume is a Turaga of Fire and the former ruler of Metru Nui, distinguished by his red and black coloring and the Noble Kanohi Kiril, the Mask of Regeneration. As a member of the Turaga of Metru Nui, he wields a Staff of Office and commands a weakened mastery of Fire. He later resides on the reformed Spherus Magna. ordered the population destroyed, and MavrahMavrahA Metru Nui Archivist who fled his city rather than let Turaga Dume cull his pet sea Rahi, drowned in a feeding frenzy a thousand years before the Great Cataclysm, and was rediscovered alive aboard the Red Star. refused. The fugitive continuation, conducted for years in the subterranean waterways beneath the city, ended in a feeding frenzy that washed MavrahMavrahA Metru Nui Archivist who fled his city rather than let Turaga Dume cull his pet sea Rahi, drowned in a feeding frenzy a thousand years before the Great Cataclysm, and was rediscovered alive aboard the Red Star. away.

Origin and assignment#

The Underwater RahiRahiThe Rahi were the biomechanical wildlife of the Matoran Universe, built largely by the Brotherhood of Makuta, ranging from background fauna to engineered war beasts. Study originated in a routine ArchivesThe Archives of Metru NuiThe Archives of Onu-Metru were the central repository of Matoran knowledge and Rahi specimens, maintained by the Archivist Corps beneath the city's surface. recovery. A group of giant sea RahiRahiThe Rahi were the biomechanical wildlife of the Matoran Universe, built largely by the Brotherhood of Makuta, ranging from background fauna to engineered war beasts., unfamiliar to the standing Onu-MetruOnu-MetruThe deep archive-city that made mining and historical records preservation the beating heart of Metru Nui. taxonomy and aggressive in disposition, had been recovered near the coast of the district and routed into the ArchivesThe Archives of Metru NuiThe Archives of Onu-Metru were the central repository of Matoran knowledge and Rahi specimens, maintained by the Archivist Corps beneath the city's surface. for study. A population of marine creatures sufficiently different from the standing roster to require fresh study was the sort of opportunity the corps was built to handle.

TuragaTuragaFormer Toa who fulfilled their destiny and transformed into leaders. Turaga wield Noble Kanohi masks and weakened elemental powers, guiding their communities. DumeDumeDume is a Turaga of Fire and the former ruler of Metru Nui, distinguished by his red and black coloring and the Noble Kanohi Kiril, the Mask of Regeneration. As a member of the Turaga of Metru Nui, he wields a Staff of Office and commands a weakened mastery of Fire. He later resides on the reformed Spherus Magna. assigned the project to a three-ArchivistArchivistA Matoran keeper of records and relics, the Archivist held one of Metru Nui's deadliest jobs. team: WhenuaWhenuaToa Metru of Earth and later Turaga of Onu-Koro, formerly an Onu-Metru archivist whose career in the Archives shaped his role across the rescue of Metru Nui and the long residency on Mata Nui., later called as the Toa MetruToa Metru and Toa HordikaSix Matoran elevated by Lhikan to save their city, mutated by Visorak venom, and restored in time to deliver the population to safety. of Earth; OnepuOnepuOnepu is an Onu-Matoran and the High Commander of the Ussalry, bearing a Pakari and wearing the purple and black colors of his kind. Connected to the element of Earth, he resides on Spherus Magna., a second Onu-MatoranOnuaOnua was the Toa Mata and Toa Nuva of Earth, a quiet, deliberate warrior whose patience and underground mastery anchored his team across the Matoran Universe. ArchivistArchivistA Matoran keeper of records and relics, the Archivist held one of Metru Nui's deadliest jobs.; and MavrahMavrahA Metru Nui Archivist who fled his city rather than let Turaga Dume cull his pet sea Rahi, drowned in a feeding frenzy a thousand years before the Great Cataclysm, and was rediscovered alive aboard the Red Star., an Onu-MatoranOnuaOnua was the Toa Mata and Toa Nuva of Earth, a quiet, deliberate warrior whose patience and underground mastery anchored his team across the Matoran Universe. of the same cohort whose intellectual signature within the corps was an early theory about the BohrokBohrokHive-minded mechanical creatures designed to reshape worlds, the Bohrok represent a threat the Toa Mata never expected. and whose temperament was famously incurious about procedural frameworks.

The team was given the ArchivesThe Archives of Metru NuiThe Archives of Onu-Metru were the central repository of Matoran knowledge and Rahi specimens, maintained by the Archivist Corps beneath the city's surface.' lower-level containment infrastructure. The lower levels were the corps' standard option for dangerous specimens and were, by the ArchivistArchivistA Matoran keeper of records and relics, the Archivist held one of Metru Nui's deadliest jobs. entry's account, the place where "many were killed by powerful RahiRahiThe Rahi were the biomechanical wildlife of the Matoran Universe, built largely by the Brotherhood of Makuta, ranging from background fauna to engineered war beasts. in the lower levels, or lost until death."

Containment failure and the cull order#

The Underwater RahiRahiThe Rahi were the biomechanical wildlife of the Matoran Universe, built largely by the Brotherhood of Makuta, ranging from background fauna to engineered war beasts. Study confirmed the corps' standing assumption about the lower levels. The recovered sea RahiRahiThe Rahi were the biomechanical wildlife of the Matoran Universe, built largely by the Brotherhood of Makuta, ranging from background fauna to engineered war beasts. proved more dangerous than the project had budgeted for. They damaged containment, killed handlers, and on at least one occasion broke into chambers their classifiers had not predicted they could reach. The casualty rate showed no sign of stabilising.

TuragaTuragaFormer Toa who fulfilled their destiny and transformed into leaders. Turaga wield Noble Kanohi masks and weakened elemental powers, guiding their communities. DumeDumeDume is a Turaga of Fire and the former ruler of Metru Nui, distinguished by his red and black coloring and the Noble Kanohi Kiril, the Mask of Regeneration. As a member of the Turaga of Metru Nui, he wields a Staff of Office and commands a weakened mastery of Fire. He later resides on the reformed Spherus Magna. lost patience and "ordered the entire RahiRahiThe Rahi were the biomechanical wildlife of the Matoran Universe, built largely by the Brotherhood of Makuta, ranging from background fauna to engineered war beasts. population destroyed." WhenuaWhenuaToa Metru of Earth and later Turaga of Onu-Koro, formerly an Onu-Metru archivist whose career in the Archives shaped his role across the rescue of Metru Nui and the long residency on Mata Nui. and OnepuOnepuOnepu is an Onu-Matoran and the High Commander of the Ussalry, bearing a Pakari and wearing the purple and black colors of his kind. Connected to the element of Earth, he resides on Spherus Magna. accepted the order. MavrahMavrahA Metru Nui Archivist who fled his city rather than let Turaga Dume cull his pet sea Rahi, drowned in a feeding frenzy a thousand years before the Great Cataclysm, and was rediscovered alive aboard the Red Star. did not. He considered the surviving specimens a window into Matoran UniverseMatoran UniverseA civilization of biomechanical beings living inside a colossal robot, destroyed when Teridax seized control. prehistory that no replacement catch would offer. Rather than allow the cull, he organised an exit.

Exile and the subterranean continuation#

MavrahMavrahA Metru Nui Archivist who fled his city rather than let Turaga Dume cull his pet sea Rahi, drowned in a feeding frenzy a thousand years before the Great Cataclysm, and was rediscovered alive aboard the Red Star.'s exit was a relocation of the entire study, conducted as a logistical operation. He left Metru NuiMetru NuiThe city beneath Mata Nui functions as the Great Spirit's brain, housing the Matoran whose labor keeps the god alive. with the surviving RahiRahiThe Rahi were the biomechanical wildlife of the Matoran Universe, built largely by the Brotherhood of Makuta, ranging from background fauna to engineered war beasts., recruited a group of prototype KralhiKralhiThe first attempt at automated law enforcement in Metru Nui, the Kralhi were decommissioned for draining their captives into uselessness and later re-emerged in the city's underground waterways. enforcers, decommissioned VahkiVahkiMetru Nui's mechanical law enforcement squads, designed to maintain rigid order but ultimately undermined by chaos beyond their programming.-precursors whose excessive response to lawbreakers had caused their removal from active service, as his wardens. A small number of VahkiVahkiMetru Nui's mechanical law enforcement squads, designed to maintain rigid order but ultimately undermined by chaos beyond their programming. followed him out as well, evidently keyed to his command sequence rather than to the city's.

He settled in a stretch of subterranean waterway in the rivers that fed out from Metru NuiMetru NuiThe city beneath Mata Nui functions as the Great Spirit's brain, housing the Matoran whose labor keeps the god alive.. The KralhiKralhiThe first attempt at automated law enforcement in Metru Nui, the Kralhi were decommissioned for draining their captives into uselessness and later re-emerged in the city's underground waterways., still bound by their directive to serve and protect MatoranMatoranThe most abundant species in the Matoran Universe, chosen by Mata Nui to inhabit and maintain his cosmic body., accepted him as the MatoranMatoranThe most abundant species in the Matoran Universe, chosen by Mata Nui to inhabit and maintain his cosmic body. within their jurisdiction. The arrangement held for years. One of the RahiRahiThe Rahi were the biomechanical wildlife of the Matoran Universe, built largely by the Brotherhood of Makuta, ranging from background fauna to engineered war beasts. in his charge had developed, per the Voyage of FearVoyage of FearThe Toa Metru's first voyage from a broken Metru Nui to the island of Mata Nui aboard the Vahki Transport Lhikan, the ambush by surviving Nuurakh, and the standoff with the exiled Archivist Mavrah and his prehistoric sea Rahi. account, an ability to sense when KanohiKanohiMasks that grant powers and sustain life, they're the most vital artifact in the Matoran Universe. mask powers were being used. MavrahMavrahA Metru Nui Archivist who fled his city rather than let Turaga Dume cull his pet sea Rahi, drowned in a feeding frenzy a thousand years before the Great Cataclysm, and was rediscovered alive aboard the Red Star. had no contact with the city he had left and no way to know what had been happening above him.

The Toa MetruMetruIn the Matoran language a metru was a single district of Metru Nui; the city was divided into six such districts, one for each element, and the term covered both the place and the elemental community that lived in it. and the feeding frenzy#

The arrangement broke when the Toa MetruToa Metru and Toa HordikaSix Matoran elevated by Lhikan to save their city, mutated by Visorak venom, and restored in time to deliver the population to safety. entered the waterway. The six new ToaWho are the Toa Mata?Six warriors built to order by Artakha, stored in canisters, dropped into the ocean. This is the origin story of Bionicle's heroes and why their first week of work was entirely amnesiac. were running the post-Great CataclysmThe Great CataclysmThe day Makuta Teridax put the Great Spirit to sleep, the Great Spirit Robot fell from the sky, Metru Nui flooded, and Voya Nui tore loose from the Southern Continent. evacuation of Metru NuiMetru NuiThe city beneath Mata Nui functions as the Great Spirit's brain, housing the Matoran whose labor keeps the god alive., ferrying MatoranMatoranThe most abundant species in the Matoran Universe, chosen by Mata Nui to inhabit and maintain his cosmic body. sealed in Matoran SpheresMatoran SphereRound containers that wiped memories and hid Makuta Teridax's manipulation of the Matoran. aboard a converted VahkiVahkiMetru Nui's mechanical law enforcement squads, designed to maintain rigid order but ultimately undermined by chaos beyond their programming. transport christened the LhikanThe Lhikan: Vahki Transport of the Toa MetruThe first of the two Vahki Transports the Toa Metru christened in honor of the fallen Toa Lhikan, the vessel that carried six Matoran in spheres across the Silver Sea to Mata Nui after the Great Cataclysm.. They had no knowledge of MavrahMavrahA Metru Nui Archivist who fled his city rather than let Turaga Dume cull his pet sea Rahi, drowned in a feeding frenzy a thousand years before the Great Cataclysm, and was rediscovered alive aboard the Red Star.'s exile and no information that the waterway was occupied.

Per the Voyage of FearVoyage of FearThe Toa Metru's first voyage from a broken Metru Nui to the island of Mata Nui aboard the Vahki Transport Lhikan, the ambush by surviving Nuurakh, and the standoff with the exiled Archivist Mavrah and his prehistoric sea Rahi. account, "A MatoranMatoranThe most abundant species in the Matoran Universe, chosen by Mata Nui to inhabit and maintain his cosmic body., MavrahMavrahA Metru Nui Archivist who fled his city rather than let Turaga Dume cull his pet sea Rahi, drowned in a feeding frenzy a thousand years before the Great Cataclysm, and was rediscovered alive aboard the Red Star., concerned for their safety, orders KralhiKralhiThe first attempt at automated law enforcement in Metru Nui, the Kralhi were decommissioned for draining their captives into uselessness and later re-emerged in the city's underground waterways. to capture the ToaWho are the Toa Mata?Six warriors built to order by Artakha, stored in canisters, dropped into the ocean. This is the origin story of Bionicle's heroes and why their first week of work was entirely amnesiac.." In practice, MavrahMavrahA Metru Nui Archivist who fled his city rather than let Turaga Dume cull his pet sea Rahi, drowned in a feeding frenzy a thousand years before the Great Cataclysm, and was rediscovered alive aboard the Red Star. had reached the only conclusion consistent with his last accurate information from Metru NuiMetru NuiThe city beneath Mata Nui functions as the Great Spirit's brain, housing the Matoran whose labor keeps the god alive.: that DumeDumeDume is a Turaga of Fire and the former ruler of Metru Nui, distinguished by his red and black coloring and the Noble Kanohi Kiril, the Mask of Regeneration. As a member of the Turaga of Metru Nui, he wields a Staff of Office and commands a weakened mastery of Fire. He later resides on the reformed Spherus Magna. had finally sent enforcement to drag him back.

After a brief struggle, the Toa MetruToa Metru and Toa HordikaSix Matoran elevated by Lhikan to save their city, mutated by Visorak venom, and restored in time to deliver the population to safety. were captured by the KralhiKralhiThe first attempt at automated law enforcement in Metru Nui, the Kralhi were decommissioned for draining their captives into uselessness and later re-emerged in the city's underground waterways. and fell unconscious. When they awoke, they were brought before MavrahMavrahA Metru Nui Archivist who fled his city rather than let Turaga Dume cull his pet sea Rahi, drowned in a feeding frenzy a thousand years before the Great Cataclysm, and was rediscovered alive aboard the Red Star. and one of his RahiRahiThe Rahi were the biomechanical wildlife of the Matoran Universe, built largely by the Brotherhood of Makuta, ranging from background fauna to engineered war beasts. with the mask-detection ability. WhenuaWhenuaToa Metru of Earth and later Turaga of Onu-Koro, formerly an Onu-Metru archivist whose career in the Archives shaped his role across the rescue of Metru Nui and the long residency on Mata Nui. attempted to explain, but per the same account, "MavrahMavrahA Metru Nui Archivist who fled his city rather than let Turaga Dume cull his pet sea Rahi, drowned in a feeding frenzy a thousand years before the Great Cataclysm, and was rediscovered alive aboard the Red Star. laughs and does not believe him." MavrahMavrahA Metru Nui Archivist who fled his city rather than let Turaga Dume cull his pet sea Rahi, drowned in a feeding frenzy a thousand years before the Great Cataclysm, and was rediscovered alive aboard the Red Star. threatened to destroy the remaining MatoranMatoranThe most abundant species in the Matoran Universe, chosen by Mata Nui to inhabit and maintain his cosmic body. spheres if the ToaWho are the Toa Mata?Six warriors built to order by Artakha, stored in canisters, dropped into the ocean. This is the origin story of Bionicle's heroes and why their first week of work was entirely amnesiac. did not surrender.

The negotiation collapsed during VakamaVakamaA Ta-Metru maskmaker transformed into the Toa Metru of Fire, leader of his team through the Visorak war, and Turaga of Ta-Koro for a thousand years.'s escape attempt. OnewaOnewaOnewa served as Toa Metru of Stone, led Po-Koro through the Dark Time, and constructed the Metru Nui statue honoring the fallen Toa Mahri Matoro. attempted to use his KomauKanohi KomauThe Mask of Mind Control, forged from Freeze, Weaken, and Remove Poison Kanoka in Metru Nui, capable of dominating the thoughts of sentient beings. to control MavrahMavrahA Metru Nui Archivist who fled his city rather than let Turaga Dume cull his pet sea Rahi, drowned in a feeding frenzy a thousand years before the Great Cataclysm, and was rediscovered alive aboard the Red Star., but the KralhiKralhiThe first attempt at automated law enforcement in Metru Nui, the Kralhi were decommissioned for draining their captives into uselessness and later re-emerged in the city's underground waterways. detected the mask use and intervened. As VakamaVakamaA Ta-Metru maskmaker transformed into the Toa Metru of Fire, leader of his team through the Visorak war, and Turaga of Ta-Koro for a thousand years. fled from the prototype enforcers, WhenuaWhenuaToa Metru of Earth and later Turaga of Onu-Koro, formerly an Onu-Metru archivist whose career in the Archives shaped his role across the rescue of Metru Nui and the long residency on Mata Nui. told the others of the Underwater RahiRahiThe Rahi were the biomechanical wildlife of the Matoran Universe, built largely by the Brotherhood of Makuta, ranging from background fauna to engineered war beasts. Study and of its disastrous conclusion. The team eventually broke out and entered combat against the KralhiKralhiThe first attempt at automated law enforcement in Metru Nui, the Kralhi were decommissioned for draining their captives into uselessness and later re-emerged in the city's underground waterways., the RahiRahiThe Rahi were the biomechanical wildlife of the Matoran Universe, built largely by the Brotherhood of Makuta, ranging from background fauna to engineered war beasts., and some accompanying VahkiVahkiMetru Nui's mechanical law enforcement squads, designed to maintain rigid order but ultimately undermined by chaos beyond their programming. at once.

MavrahMavrahA Metru Nui Archivist who fled his city rather than let Turaga Dume cull his pet sea Rahi, drowned in a feeding frenzy a thousand years before the Great Cataclysm, and was rediscovered alive aboard the Red Star., still believing DumeDumeDume is a Turaga of Fire and the former ruler of Metru Nui, distinguished by his red and black coloring and the Noble Kanohi Kiril, the Mask of Regeneration. As a member of the Turaga of Metru Nui, he wields a Staff of Office and commands a weakened mastery of Fire. He later resides on the reformed Spherus Magna. to be hunting him, ordered the RahiRahiThe Rahi were the biomechanical wildlife of the Matoran Universe, built largely by the Brotherhood of Makuta, ranging from background fauna to engineered war beasts. to attack. The RahiRahiThe Rahi were the biomechanical wildlife of the Matoran Universe, built largely by the Brotherhood of Makuta, ranging from background fauna to engineered war beasts. turned on the ToaWho are the Toa Mata?Six warriors built to order by Artakha, stored in canisters, dropped into the ocean. This is the origin story of Bionicle's heroes and why their first week of work was entirely amnesiac. and, in the chaos, on one another. A massive wave from one of the larger animals struck the LhikanThe Lhikan: Vahki Transport of the Toa MetruThe first of the two Vahki Transports the Toa Metru christened in honor of the fallen Toa Lhikan, the vessel that carried six Matoran in spheres across the Silver Sea to Mata Nui after the Great Cataclysm. and knocked the Matoran SphereMatoran SphereRound containers that wiped memories and hid Makuta Teridax's manipulation of the Matoran. containing AhkmouAhkmouA Po-Matoran carver of Metru Nui, one of the six Great Disk holders, who collaborated with Makuta Teridax and later imposed false Turaga rule during Teridax's reign. off the raft into the river. OnewaOnewaOnewa served as Toa Metru of Stone, led Po-Koro through the Dark Time, and constructed the Metru Nui statue honoring the fallen Toa Mahri Matoro. was knocked into the ocean. WhenuaWhenuaToa Metru of Earth and later Turaga of Onu-Koro, formerly an Onu-Metru archivist whose career in the Archives shaped his role across the rescue of Metru Nui and the long residency on Mata Nui. dived after his friend and recovered him.

The same wave caught MavrahMavrahA Metru Nui Archivist who fled his city rather than let Turaga Dume cull his pet sea Rahi, drowned in a feeding frenzy a thousand years before the Great Cataclysm, and was rediscovered alive aboard the Red Star.. OnewaOnewaOnewa served as Toa Metru of Stone, led Po-Koro through the Dark Time, and constructed the Metru Nui statue honoring the fallen Toa Mahri Matoro. had managed, in the last moments, to speak to him harshly enough to make him see the error of his ways. The rogue archivist tried to call his RahiRahiThe Rahi were the biomechanical wildlife of the Matoran Universe, built largely by the Brotherhood of Makuta, ranging from background fauna to engineered war beasts. off, but it was too late, and the violent waves swept him away. The Toa MetruToa Metru and Toa HordikaSix Matoran elevated by Lhikan to save their city, mutated by Visorak venom, and restored in time to deliver the population to safety. did not see him surface. They concluded he had drowned. WhenuaWhenuaToa Metru of Earth and later Turaga of Onu-Koro, formerly an Onu-Metru archivist whose career in the Archives shaped his role across the rescue of Metru Nui and the long residency on Mata Nui. carried the death of his friend out of the waterway and into his later life as a TuragaTuragaFormer Toa who fulfilled their destiny and transformed into leaders. Turaga wield Noble Kanohi masks and weakened elemental powers, guiding their communities..

Aftermath and significance#

The official record placed the Underwater RahiRahiThe Rahi were the biomechanical wildlife of the Matoran Universe, built largely by the Brotherhood of Makuta, ranging from background fauna to engineered war beasts. Study among the institutional failures of the late Onu-MetruOnu-MetruThe deep archive-city that made mining and historical records preservation the beating heart of Metru Nui. ArchivesThe Archives of Metru NuiThe Archives of Onu-Metru were the central repository of Matoran knowledge and Rahi specimens, maintained by the Archivist Corps beneath the city's surface.. It had begun as a recovery opportunity, escalated into a containment crisis under DumeDumeDume is a Turaga of Fire and the former ruler of Metru Nui, distinguished by his red and black coloring and the Noble Kanohi Kiril, the Mask of Regeneration. As a member of the Turaga of Metru Nui, he wields a Staff of Office and commands a weakened mastery of Fire. He later resides on the reformed Spherus Magna.'s direct oversight, ended on a cull order, and produced one of the corps' few documented cases of an ArchivistArchivistA Matoran keeper of records and relics, the Archivist held one of Metru Nui's deadliest jobs. refusing the institutional response and removing the materials from the city entirely. The corps had lost handlers in the lower levels. The cull order had cost it a competent ArchivistArchivistA Matoran keeper of records and relics, the Archivist held one of Metru Nui's deadliest jobs.. The fugitive continuation had killed that same ArchivistArchivistA Matoran keeper of records and relics, the Archivist held one of Metru Nui's deadliest jobs. and disrupted the Toa MetruToa Metru and Toa HordikaSix Matoran elevated by Lhikan to save their city, mutated by Visorak venom, and restored in time to deliver the population to safety.'s evacuation, with the loss of AhkmouAhkmouA Po-Matoran carver of Metru Nui, one of the six Great Disk holders, who collaborated with Makuta Teridax and later imposed false Turaga rule during Teridax's reign.'s sphere as one specific downstream consequence.

MavrahMavrahA Metru Nui Archivist who fled his city rather than let Turaga Dume cull his pet sea Rahi, drowned in a feeding frenzy a thousand years before the Great Cataclysm, and was rediscovered alive aboard the Red Star.'s presumed death was the operational close from the Metru NuiMetru NuiThe city beneath Mata Nui functions as the Great Spirit's brain, housing the Matoran whose labor keeps the god alive. side. The actual close came over a thousand years later when KopakaKopakaKopaka was the Toa Nuva of Ice, deputy commander of the Toa Mata, and one of the six warriors crafted on Artakha to defend the Matoran Universe. and PohatuPohatuPohatu was the Toa Mata and Toa Nuva of Stone, guardian of Po-Wahi, whose speed and steady humour anchored the team through every era of the Matoran Universe. found him alive aboard the Red StarRed StarThe Red Star was an orbiting facility that revived the dead and enabled the Great Spirit Robot's cosmic travels., where the orbital's resurrection protocol had recovered his remains, repaired him, and failed to send him back. The Underwater RahiRahiThe Rahi were the biomechanical wildlife of the Matoran Universe, built largely by the Brotherhood of Makuta, ranging from background fauna to engineered war beasts. Study had lost its lead ArchivistArchivistA Matoran keeper of records and relics, the Archivist held one of Metru Nui's deadliest jobs. into a sealed orbital where the universe had been quietly stockpiling resurrected dead, and his eventual reappearance was the first witness testimony anyone outside the KestoraKestoraThe Kestora are a species of purple and black beings associated with the Red Star and the City of Silver Pocket Dimension. had to the scale of that backlog.

The study itself was not resumed. The surviving RahiRahiThe Rahi were the biomechanical wildlife of the Matoran Universe, built largely by the Brotherhood of Makuta, ranging from background fauna to engineered war beasts. population had broken up in the frenzy, the KralhiKralhiThe first attempt at automated law enforcement in Metru Nui, the Kralhi were decommissioned for draining their captives into uselessness and later re-emerged in the city's underground waterways. escort had been scattered, and the ArchivesThe Archives of Metru NuiThe Archives of Onu-Metru were the central repository of Matoran knowledge and Rahi specimens, maintained by the Archivist Corps beneath the city's surface. corps had been preempted by the Great CataclysmThe Great CataclysmThe day Makuta Teridax put the Great Spirit to sleep, the Great Spirit Robot fell from the sky, Metru Nui flooded, and Voya Nui tore loose from the Southern Continent. and the wholesale evacuation of Metru NuiMetru NuiThe city beneath Mata Nui functions as the Great Spirit's brain, housing the Matoran whose labor keeps the god alive.. The prehistoric specimens MavrahMavrahA Metru Nui Archivist who fled his city rather than let Turaga Dume cull his pet sea Rahi, drowned in a feeding frenzy a thousand years before the Great Cataclysm, and was rediscovered alive aboard the Red Star. had tried to keep alive were never catalogued by any later effort.

Frequently asked questions

What was the Underwater Rahi Study?
The Underwater Rahi Study was an Onu-Metru Archives project to assess a group of ancient sea Rahi recovered near the coast of Metru Nui. Turaga Dume assigned it to a three-Archivist team of Whenua, Onepu, and Mavrah.
Why was the Underwater Rahi Study terminated?
The recovered sea Rahi proved more dangerous than the project had budgeted for, damaging containment and killing handlers in the lower levels, with no sign the casualty rate would stabilize. Turaga Dume lost patience and ordered the entire Rahi population destroyed.
Why did Mavrah refuse the cull order?
Mavrah considered the surviving specimens a window into Matoran Universe prehistory that no replacement catch would offer. Rather than allow the cull, he smuggled the surviving Rahi out of Metru Nui along with a group of decommissioned Kralhi prototype enforcers and a small number of Vahki, and settled in a subterranean waterway.
How did the Underwater Rahi Study end?
The Toa Metru passed through the same waterway during their post-Great Cataclysm evacuation of Metru Nui. Mavrah, believing Dume had sent enforcement to recapture him, ordered the Kralhi to capture the Toa and then ordered the Rahi to attack, which sparked a feeding frenzy. A massive wave knocked Ahkmou's Matoran Sphere off the Lhikan transport and swept Mavrah away.
What happened to Mavrah after the feeding frenzy?
The Toa Metru did not see Mavrah surface and concluded he had drowned, and Whenua carried his friend's death into his later life as a Turaga. Over a thousand years later, Kopaka and Pohatu found Mavrah alive aboard the Red Star, where the orbital's resurrection protocol had recovered and repaired him but failed to send him back.

Sources

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