Keystone

The Keystones are six fragments of a single tablet, each a physical component required to open the Codrex and initiate Mata NuiMata Nui (Location)An island created by accident on the Great Spirit's face, home to the Matoran for a thousand years.'s awakening. They're not weapons or armor. They're bureaucracy made solid. During the final arc of the Matoran UniverseMatoran UniverseA civilization of biomechanical beings living inside a colossal robot, destroyed when Teridax seized control.'s existence, the Toa NuvaToa NuvaThe form the Toa Mata took after stepping into the Energized Protodermis beneath the Bahrag, with new masks, new tools, and the elemental scale to fight Karda Nui. had to scatter across Karda NuiKarda NuiThe vast inner cavern at the core of the Matoran Universe, original home of the Av-Matoran, site of the Codrex and the final battle that decided the fate of Mata Nui. to hunt them down one by one, which means these quiet pieces of stone accidentally became the lynchpin of the entire endgame.

History and Discovery#

The six keystones were distributed deliberately. SolekSolekSolek was an Av-Matoran of Karda Nui who fought alongside the Toa Nuva against the Brotherhood of Makuta during the final battle for Mata Nui's awakening., an Av-MatoranAv-MatoranThe Light-element Matoran, prototypes of their species, who colonised Karda Nui from the Southern Continent and built the Stalactite Villages above the Swamp of Secrets., gave the first to 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 explained that five others existed scattered across Karda NuiKarda NuiThe vast inner cavern at the core of the Matoran Universe, original home of the Av-Matoran, site of the Codrex and the final battle that decided the fate of Mata Nui.. One rested with the Shadow MatoranShadow MatoranAv-Matoran corrupted by the Makuta in Karda Nui, drained of Light and weaponized with shadow powers. Kirop. Another lay in the possession of the MakutaMakuta (Species)Shadowy Antidermis beings and the Brotherhood's elite, Makuta commanded darkness and shaped the Matoran Universe's fate. themselves. The remaining three had been left in unspecified locations. This distribution forced the Toa to split up and engage in separate battles across the swamp, forest, and MakutaMakuta (Species)Shadowy Antidermis beings and the Brotherhood's elite, Makuta commanded darkness and shaped the Matoran Universe's fate. lairs simultaneously.

As documented in BIONICLEBIONICLE: Matoran AdventuresA 2002 GBA platformer where you play as one of six Matoran fighting Bohrok across Mata Nui's islands. Legends 10: Swamp of SecretsSwamp of SecretsThe Swamp of Secrets was the mutagen-saturated wetland that filled the floor of Karda Nui after the Great Cataclysm, serving as a Brotherhood stronghold until the Energy Storms., Gali located one keystone while crossing the Swamp of SecretsSwamp of SecretsThe Swamp of Secrets was the mutagen-saturated wetland that filled the floor of Karda Nui after the Great Cataclysm, serving as a Brotherhood stronghold until the Energy Storms., discovering it gripped in the grasp of a sentient plant. She fought GorastGorastA Makuta defined by rage and ruthlessness, Gorast conquered the Visorak and became Teridax's most devoted enforcer. to retrieve it. TahuTahu (2001)Tahu was the Toa Mata of Fire and leader of the team, from his first landing on Ta-Wahi Beach to the destruction of Teridax's Rahkshi army on Bara Magna with the Golden Armor.'s team seized another keystone from the MakutaMakuta (Species)Shadowy Antidermis beings and the Brotherhood's elite, Makuta commanded darkness and shaped the Matoran Universe's fate. by creating timed elemental explosions that distracted the guardians long enough to steal it. An Av-MatoranAv-MatoranThe Light-element Matoran, prototypes of their species, who colonised Karda Nui from the Southern Continent and built the Stalactite Villages above the Swamp of Secrets. guide handed TahuTahu (2001)Tahu was the Toa Mata of Fire and leader of the team, from his first landing on Ta-Wahi Beach to the destruction of Teridax's Rahkshi army on Bara Magna with the Golden Armor. a keystone before transforming into a BohrokBohrokHive-minded mechanical creatures designed to reshape worlds, the Bohrok represent a threat the Toa Mata never expected..

The CodrexThe CodrexA spherical vault built by the Great Beings beneath Karda Nui to house the Toa Mata in stasis and control the final phase of Mata Nui's reawakening. Lock#

The keystones weren't keys in the conventional sense. They were components of a lock that required all six pieces to function. When the Toa NuvaToa NuvaThe form the Toa Mata took after stepping into the Energized Protodermis beneath the Bahrag, with new masks, new tools, and the elemental scale to fight Karda Nui. assembled them, they inserted one keystone into a niche embedded within the Codrex's energy field. This action disabled the protective barrier and granted access to the facility. The CodrexThe CodrexA spherical vault built by the Great Beings beneath Karda Nui to house the Toa Mata in stasis and control the final phase of Mata Nui's reawakening. was engineered to require all six keystones before any activation could proceed, meaning the entire resurrection sequence depended on the Toa completing a distributed fetch quest. That's oddly procedural for a mechanism supposedly controlling the fate of the Matoran UniverseMatoran UniverseA civilization of biomechanical beings living inside a colossal robot, destroyed when Teridax seized control..

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Compiled from primary sources by Lore Fortress editorial. Reviewed by Joe Garratt, Editor-in-Chief.