Blade Burrowers
The tunneling Rahi engineered by Makuta Mutran for the Barraki Kalmah, gifted with deliberately shortened lifespans, and later discovered to have outlived their expiration date while carving an unreadable map beneath their warlord's ruined fortress.
Blade Burrowers were powerful and reclusive 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. engineered by Makuta MutranMutranMutran is a Makuta of the Brotherhood of Makuta who serves as the Makuta of Voya Nui and is among the most prolific Rahi creators within the organization. Hailing from the Southern Islands, he wears the Great Shelek and commands the powers of Shadow and Silence alongside the full range of Kraata abilities, wielding a Shadow Blade, Shadow Spear, and Tridax Pod in combat. and supplied to the BarrakiThe BarrakiSix warlords who built an empire spanning most of the Matoran Universe, fell to a Brotherhood strike, and spent millennia imprisoned in the Pit. warlord KalmahKalmahA red-and-black Barraki warlord of the League of Six Kingdoms, imprisoned in the Pit and mutated into permanent aquatic form. during the era of the League of Six KingdomsLeague of Six KingdomsThe League of Six Kingdoms was an alliance composed of various species, with ties to Xia and many other islands. Connected to both the Order of Mata Nui and the Brotherhood of Makuta, the League included Pridak among its ranks, and its members collectively held several powers of unknown scope. Its stated objective was the overthrow of Mata Nui.. They were heavily clawed tunnelling creatures with long club-shaped tails, very poor eyesight, and a behavioural compulsion to dig in a recurring pattern whenever they gathered in sufficient numbers. The species outlived its intended lifespan in the ruins of KalmahKalmahA red-and-black Barraki warlord of the League of Six Kingdoms, imprisoned in the Pit and mutated into permanent aquatic form.'s fortress and was later found in the Metru NuiMetru NuiThe city beneath Mata Nui functions as the Great Spirit's brain, housing the Matoran whose labor keeps the god alive. 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.. (The Mutran Chronicles; BIONICLE: Rahi Beasts)
Origin and the Brotherhood tribute#
The Blade Burrowers were not a wild species. They were one of MutranMutranMutran is a Makuta of the Brotherhood of Makuta who serves as the Makuta of Voya Nui and is among the most prolific Rahi creators within the organization. Hailing from the Southern Islands, he wears the Great Shelek and commands the powers of Shadow and Silence alongside the full range of Kraata abilities, wielding a Shadow Blade, Shadow Spear, and Tridax Pod in combat.'s creations, and he named them himself. When the warlords of the League of Six KingdomsLeague of Six KingdomsThe League of Six Kingdoms was an alliance composed of various species, with ties to Xia and many other islands. Connected to both the Order of Mata Nui and the Brotherhood of Makuta, the League included Pridak among its ranks, and its members collectively held several powers of unknown scope. Its stated objective was the overthrow of Mata Nui. planned to carve the universe into territories, the MakutaMakuta (Species)Shadowy Antidermis beings and the Brotherhood's elite, Makuta commanded darkness and shaped the Matoran Universe's fate. were expected to keep providing them with 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 anything else they needed, and some of MutranMutranMutran is a Makuta of the Brotherhood of Makuta who serves as the Makuta of Voya Nui and is among the most prolific Rahi creators within the organization. Hailing from the Southern Islands, he wears the Great Shelek and commands the powers of Shadow and Silence alongside the full range of Kraata abilities, wielding a Shadow Blade, Shadow Spear, and Tridax Pod in combat.'s Blade Burrowers went to KalmahKalmahA red-and-black Barraki warlord of the League of Six Kingdoms, imprisoned in the Pit and mutated into permanent aquatic form.. (The Mutran Chronicles)
The arrangement was not affectionate on either side. KalmahKalmahA red-and-black Barraki warlord of the League of Six Kingdoms, imprisoned in the Pit and mutated into permanent aquatic form. never showed the respect MutranMutranMutran is a Makuta of the Brotherhood of Makuta who serves as the Makuta of Voya Nui and is among the most prolific Rahi creators within the organization. Hailing from the Southern Islands, he wears the Great Shelek and commands the powers of Shadow and Silence alongside the full range of Kraata abilities, wielding a Shadow Blade, Shadow Spear, and Tridax Pod in combat. felt was due a MakutaThe Brotherhood of MakutaAn organization of Makuta created by Mata Nui to build Rahi and keep order in his universe, later seized by Teridax and turned into the instrument of the Plan that overthrew the Great Spirit., so MutranMutranMutran is a Makuta of the Brotherhood of Makuta who serves as the Makuta of Voya Nui and is among the most prolific Rahi creators within the organization. Hailing from the Southern Islands, he wears the Great Shelek and commands the powers of Shadow and Silence alongside the full range of Kraata abilities, wielding a Shadow Blade, Shadow Spear, and Tridax Pod in combat. never sent him 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 a lifespan of more than three days. (The Mutran Chronicles)
The result, by MutranMutranMutran is a Makuta of the Brotherhood of Makuta who serves as the Makuta of Voya Nui and is among the most prolific Rahi creators within the organization. Hailing from the Southern Islands, he wears the Great Shelek and commands the powers of Shadow and Silence alongside the full range of Kraata abilities, wielding a Shadow Blade, Shadow Spear, and Tridax Pod in combat.'s own account, was that the northwestern regions of the League's territory were littered with the carcasses of dead 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.. The Blade Burrowers ought to have died in step with the rest of his deliveries. (The Mutran Chronicles)
Form and abilities#
A Blade BurrowerBlade Burrower: The Tunnelling Rahi of Metru NuiBlade Burrowers were powerful, near-blind Rahi that dug endless tunnels in a fixed pattern, a behavior the Great Beings engineered into them and that no one who studied the creatures was ever able to fully explain. was a low-set, heavily built 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. constructed for sustained digging. It dug with powerful claws. The species hunted not by sight but by smell, since its eyesight was very poor. (BIONICLE: Rahi Beasts)
The species' most distinctive physical feature was its long, club-shaped tail. A raging Burrower swung the tail around, knocking others over and sending them running. While the VahkiVahkiMetru Nui's mechanical law enforcement squads, designed to maintain rigid order but ultimately undermined by chaos beyond their programming. were active on Metru NuiMetru NuiThe city beneath Mata Nui functions as the Great Spirit's brain, housing the Matoran whose labor keeps the god alive., they put raging Burrowers into containers as fast as possible. (BIONICLE: Rahi Beasts)
The defining behaviour was the digging. When the species gathered in sufficient numbers, the Burrowers began tunnelling every which way. At first glance the tunnels looked random, but they followed one repeating pattern. Two long curved tunnels ran roughly north and south, with smaller subsidiary tunnels arranged between them, and the same configuration was repeated through every accessible region. (The Mutran Chronicles)
The carved map at KalmahKalmahA red-and-black Barraki warlord of the League of Six Kingdoms, imprisoned in the Pit and mutated into permanent aquatic form.'s fortress#
The compulsion was first identified after the fall of the League of Six KingdomsLeague of Six KingdomsThe League of Six Kingdoms was an alliance composed of various species, with ties to Xia and many other islands. Connected to both the Order of Mata Nui and the Brotherhood of Makuta, the League included Pridak among its ranks, and its members collectively held several powers of unknown scope. Its stated objective was the overthrow of Mata Nui., after the BrotherhoodThe Brotherhood of MakutaAn organization of Makuta created by Mata Nui to build Rahi and keep order in his universe, later seized by Teridax and turned into the instrument of the Plan that overthrew the Great Spirit.'s final battle with the BarrakiThe BarrakiSix warlords who built an empire spanning most of the Matoran Universe, fell to a Brotherhood strike, and spent millennia imprisoned in the Pit.. MutranMutranMutran is a Makuta of the Brotherhood of Makuta who serves as the Makuta of Voya Nui and is among the most prolific Rahi creators within the organization. Hailing from the Southern Islands, he wears the Great Shelek and commands the powers of Shadow and Silence alongside the full range of Kraata abilities, wielding a Shadow Blade, Shadow Spear, and Tridax Pod in combat. and GorastGorastA Makuta defined by rage and ruthlessness, Gorast conquered the Visorak and became Teridax's most devoted enforcer. were dispatched to clear what remained. The location was, by MutranMutranMutran is a Makuta of the Brotherhood of Makuta who serves as the Makuta of Voya Nui and is among the most prolific Rahi creators within the organization. Hailing from the Southern Islands, he wears the Great Shelek and commands the powers of Shadow and Silence alongside the full range of Kraata abilities, wielding a Shadow Blade, Shadow Spear, and Tridax Pod in combat.'s own assessment, unpleasant: the northwestern reaches of the League's former territory smelled of rotting 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., much of it the remains of MutranMutranMutran is a Makuta of the Brotherhood of Makuta who serves as the Makuta of Voya Nui and is among the most prolific Rahi creators within the organization. Hailing from the Southern Islands, he wears the Great Shelek and commands the powers of Shadow and Silence alongside the full range of Kraata abilities, wielding a Shadow Blade, Shadow Spear, and Tridax Pod in combat.'s own short-lived deliveries. The fortress had been sacked by KalmahKalmahA red-and-black Barraki warlord of the League of Six Kingdoms, imprisoned in the Pit and mutated into permanent aquatic form.'s own remnant army before the two MakutaMakuta (Species)Shadowy Antidermis beings and the Brotherhood's elite, Makuta commanded darkness and shaped the Matoran Universe's fate. arrived, and nothing of use was left. (The Mutran Chronicles)
MutranMutranMutran is a Makuta of the Brotherhood of Makuta who serves as the Makuta of Voya Nui and is among the most prolific Rahi creators within the organization. Hailing from the Southern Islands, he wears the Great Shelek and commands the powers of Shadow and Silence alongside the full range of Kraata abilities, wielding a Shadow Blade, Shadow Spear, and Tridax Pod in combat. cleared a space in the rubble to sit and noticed a carving on a remaining piece of stone. The carving was a record of what KalmahKalmahA red-and-black Barraki warlord of the League of Six Kingdoms, imprisoned in the Pit and mutated into permanent aquatic form. had discovered about the Blade Burrowers in his service. A population of the creatures had outlived the expiration MutranMutranMutran is a Makuta of the Brotherhood of Makuta who serves as the Makuta of Voya Nui and is among the most prolific Rahi creators within the organization. Hailing from the Southern Islands, he wears the Great Shelek and commands the powers of Shadow and Silence alongside the full range of Kraata abilities, wielding a Shadow Blade, Shadow Spear, and Tridax Pod in combat. had built into them, and KalmahKalmahA red-and-black Barraki warlord of the League of Six Kingdoms, imprisoned in the Pit and mutated into permanent aquatic form. had spent his last period of authority observing the network of tunnels they were producing beneath the fortress. The shape was not random. The tunnels formed a deliberate, repeating pattern, and KalmahKalmahA red-and-black Barraki warlord of the League of Six Kingdoms, imprisoned in the Pit and mutated into permanent aquatic form. had concluded that the Blade Burrowers were carving a map. He had not deciphered what the map represented before the war ended. (The Mutran Chronicles)
MutranMutranMutran is a Makuta of the Brotherhood of Makuta who serves as the Makuta of Voya Nui and is among the most prolific Rahi creators within the organization. Hailing from the Southern Islands, he wears the Great Shelek and commands the powers of Shadow and Silence alongside the full range of Kraata abilities, wielding a Shadow Blade, Shadow Spear, and Tridax Pod in combat. inherited the question. He could not match the carved geometry to any landmass on any chart available to the BrotherhoodThe Brotherhood of MakutaAn organization of Makuta created by Mata Nui to build Rahi and keep order in his universe, later seized by Teridax and turned into the instrument of the Plan that overthrew the Great Spirit.. He later went to the length of capturing a Toa wearing a Kanohi RauKanohi RauThe Kanohi Rau allowed its wearer to comprehend foreign written and spoken languages, and was most associated with Turaga Nokama., the Mask of Translation, and forcing the prisoner to address the Burrowers directly. The communication failed. The Burrowers had no understanding of the pattern themselves, only the compulsion to keep cutting it. The map was real, the geometry was deliberate, and the species' purpose in producing it remained, by MutranMutranMutran is a Makuta of the Brotherhood of Makuta who serves as the Makuta of Voya Nui and is among the most prolific Rahi creators within the organization. Hailing from the Southern Islands, he wears the Great Shelek and commands the powers of Shadow and Silence alongside the full range of Kraata abilities, wielding a Shadow Blade, Shadow Spear, and Tridax Pod in combat.'s own admission, a mystery that haunted him long afterward. (The Mutran Chronicles)
The stories never answer the question. Writer Greg Farshtey later said, outside the stories, that the shape was the symbol of the Three VirtuesThe Three VirtuesThe Three Virtues were the foundational principles given by Mata Nui to the Matoran, shaping social order, ritual, and the cosmology of Spherus Magna., Unity, Duty, and Destiny, meant to remind the Great SpiritMata Nui: Great Spirit of the Matoran UniverseBuilt by the Great Beings as a biomechanical guardian, betrayed by Teridax, and returned in a smaller form to reshape Spherus Magna. of his mission. (The Mutran Chronicles)
The Archives population and BomongaBomongaBomonga was the Toa Hagah of Earth, mutated by Roodaka into a Rahaga, later restored to Toa form and resettled on Spherus Magna.'s survey#
The species' second documented base of operations was the Metru NuiMetru NuiThe city beneath Mata Nui functions as the Great Spirit's brain, housing the Matoran whose labor keeps the god alive. 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.. Their tunnels ran through 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., and ArchivistsThe 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. sometimes mistook them for parts of the Archives, wandered down them, and were never seen again. (BIONICLE: Rahi Beasts)
When food in 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. ran low, Burrowers surfaced in search of prey and caused massive destruction. (BIONICLE: Rahi Beasts)
Rahaga BomongaBomongaBomonga was the Toa Hagah of Earth, mutated by Roodaka into a Rahaga, later restored to Toa form and resettled on Spherus Magna., one of the former Toa HagahToa Hagah and RahagaThe Toa Hagah were appointed to guard Makuta Teridax, mutated into hybrid warriors, and mysteriously restored. reduced to Rahaga form, tried to map the Burrower tunnels when he lived in 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.. He concluded they were not random at all, that the Burrowers seemed to be building something, but he could not say what or why. (BIONICLE: Rahi Beasts; BIONICLE Adventures 10: Time Trap)
Aftermath and migration#
The stories say nothing more of the species after the Metru NuiMetru NuiThe city beneath Mata Nui functions as the Great Spirit's brain, housing the Matoran whose labor keeps the god alive. era. Writer Greg Farshtey later said, outside the stories, that many Blade Burrowers left the Matoran UniverseMatoran UniverseA civilization of biomechanical beings living inside a colossal robot, destroyed when Teridax seized control. for Spherus MagnaSpherus MagnaA desert world of ancient conflict that became the merger point of the Matoran Universe and Bionicle's true endpoint. after the Battle of Bara MagnaBara MagnaA desert world of tribal warfare and scarce resources, one of three landmasses that formed Spherus Magna.. (BIONICLE: Rahi Beasts)
What endures from the species' record is the unresolved geometry. A 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 engineered for KalmahKalmahA red-and-black Barraki warlord of the League of Six Kingdoms, imprisoned in the Pit and mutated into permanent aquatic form.'s wars and designed by MutranMutranMutran is a Makuta of the Brotherhood of Makuta who serves as the Makuta of Voya Nui and is among the most prolific Rahi creators within the organization. Hailing from the Southern Islands, he wears the Great Shelek and commands the powers of Shadow and Silence alongside the full range of Kraata abilities, wielding a Shadow Blade, Shadow Spear, and Tridax Pod in combat. to die quickly outlived its maker's intent and kept cutting the same pattern beneath every surface that would hold it. KalmahKalmahA red-and-black Barraki warlord of the League of Six Kingdoms, imprisoned in the Pit and mutated into permanent aquatic form. saw the pattern and recognised a map. MutranMutranMutran is a Makuta of the Brotherhood of Makuta who serves as the Makuta of Voya Nui and is among the most prolific Rahi creators within the organization. Hailing from the Southern Islands, he wears the Great Shelek and commands the powers of Shadow and Silence alongside the full range of Kraata abilities, wielding a Shadow Blade, Shadow Spear, and Tridax Pod in combat. saw the pattern and could not solve it. The behaviour was the inheritance, not the explanation, and it haunted MutranMutranMutran is a Makuta of the Brotherhood of Makuta who serves as the Makuta of Voya Nui and is among the most prolific Rahi creators within the organization. Hailing from the Southern Islands, he wears the Great Shelek and commands the powers of Shadow and Silence alongside the full range of Kraata abilities, wielding a Shadow Blade, Shadow Spear, and Tridax Pod in combat. long afterward. (The Mutran Chronicles)
Frequently asked questions
- What were Blade Burrowers?
- Blade Burrowers were powerful, mysterious Rahi created by Makuta Mutran, some of which he supplied to the Barraki warlord Kalmah during the era of the League of Six Kingdoms. They were heavily clawed tunnelling creatures with long club-shaped tails, very poor eyesight, and a compulsion to dig in a recurring pattern when they gathered in sufficient numbers.
- Why did Mutran give the Blade Burrowers a short lifespan?
- Kalmah had never shown the respect Mutran felt was due a Makuta, so Mutran never sent him Rahi with a lifespan of more than three days, Blade Burrowers included.
- How did Blade Burrowers hunt despite their poor eyesight?
- The species hunted by smell rather than sight. When food in the Archives ran low, they surfaced and caused massive destruction searching for prey.
- What was the carved map at Kalmah's fortress?
- A surviving population of Blade Burrowers had outlived their built-in expiration and carved a vast repeating pattern of tunnels beneath the fortress, two long curved tunnels running north and south with smaller ones between them. Kalmah concluded it was a map but never deciphered it, and Mutran could not match the geometry to any chart. Writer Greg Farshtey later said, outside the stories, that the pattern was the symbol of the Three Virtues.
- What happened to the Blade Burrowers after the Battle of Bara Magna?
- The stories never say. Writer Greg Farshtey later said, outside the stories, that many Blade Burrowers left the Matoran Universe for Spherus Magna after the battle.
Sources
- SerialThe Mutran Chronicles, Greg Farshtey, BIONICLEstory.com, 2008
- BookBIONICLE: Rahi Beasts, Greg Farshtey and Jeff James, Scholastic, 2005
- BookBIONICLE Adventures 10: Time Trap, Greg Farshtey, Scholastic, 2005
Spotted a factual error or a primary source we missed? Email a correction. Every flagged claim gets reviewed.
Followed from this entry

Blade Burrower: The Tunnelling Rahi of Metru Nui
Blade Burrowers were powerful, near-blind Rahi that dug endless tunnels in a fixed pattern, a behavior the Great Beings engineered into them and that no one who studied the creatures was ever able to fully explain.

The Brotherhood of Makuta
An organization of Makuta created by Mata Nui to build Rahi and keep order in his universe, later seized by Teridax and turned into the instrument of the Plan that overthrew the Great Spirit.

Rahi
The Rahi were the biomechanical wildlife of the Matoran Universe, built largely by the Brotherhood of Makuta, ranging from background fauna to engineered war beasts.

Makuta (Species)
Shadowy Antidermis beings and the Brotherhood's elite, Makuta commanded darkness and shaped the Matoran Universe's fate.

Mutran
Mutran is a Makuta of the Brotherhood of Makuta who serves as the Makuta of Voya Nui and is among the most prolific Rahi creators within the organization. Hailing from the Southern Islands, he wears the Great Shelek and commands the powers of Shadow and Silence alongside the full range of Kraata abilities, wielding a Shadow Blade, Shadow Spear, and Tridax Pod in combat.

Bomonga
Bomonga was the Toa Hagah of Earth, mutated by Roodaka into a Rahaga, later restored to Toa form and resettled on Spherus Magna.
Mentioned in2 entries
Blade Burrower: The Tunnelling Rahi of Metru Nui
Blade Burrowers were powerful, near-blind Rahi that dug endless tunnels in a fixed pattern, a behavior the Great Beings engineered into them and that no one who studied the creatures was ever able to fully explain.
The Three Virtues
The Three Virtues were the foundational principles given by Mata Nui to the Matoran, shaping social order, ritual, and the cosmology of Spherus Magna.
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