Gahdok
One of the twin Bahrag queens, Gahdok commanded the Bohrok swarms alongside Cahdok until the Toa Mata sealed them both in solid protodermis.

Gahdok was one of the twin BahragBahragCahdok and Gahdok were the twin queens of the Bohrok, sealed in a protodermis cage by the Toa Mata and later released to finish their cleansing of Mata Nui. queens, ruling the BohrokBohrokHive-minded mechanical creatures designed to reshape worlds, the Bohrok represent a threat the Toa Mata never expected. swarms alongside her sister Cahdok from a nest deep beneath Mata NuiMata Nui (Location)An island created by accident on the Great Spirit's face, home to the Matoran for a thousand years.. Created by the Great BeingsThe Great BeingsScholar-inventors of Spherus Magna whose creations shaped the Matoran Universe and whose absence defined the conflicts that followed. to lead the swarms in cleansing the island, the two queens shared command of all six BohrokBohrokHive-minded mechanical creatures designed to reshape worlds, the Bohrok represent a threat the Toa Mata never expected. breeds and made the KranaKranaThe small organic creatures that controlled the Bohrok, made in eight types plus a mutated variant, without which no Bohrok could serve the swarm. the swarms wore. (BIONICLE Chronicles 2: Beware the Bohrok; BIONICLE: Encyclopedia Updated)
Origins of the Bahrag#
Gahdok and Cahdok were made by the Great BeingsThe Great BeingsScholar-inventors of Spherus Magna whose creations shaped the Matoran Universe and whose absence defined the conflicts that followed. for one job: to lead the BohrokBohrokHive-minded mechanical creatures designed to reshape worlds, the Bohrok represent a threat the Toa Mata never expected. in clearing the island of Mata NuiMata Nui (Location)An island created by accident on the Great Spirit's face, home to the Matoran for a thousand years. back to the state it had been in during the Before-Time, and to make the KranaKranaThe small organic creatures that controlled the Bohrok, made in eight types plus a mutated variant, without which no Bohrok could serve the swarm. the swarms needed. They were given no knowledge of anything beyond that task. The two queens slept in the Bohrok NestBohrok NestThe subterranean chamber where the Bohrok slumbered beneath Mata Nui until Makuta's machinations awakened them. beneath the island until they were woken. (BIONICLE 7: What Lurks Below; BIONICLE Chronicles 2: Beware the Bohrok; BIONICLE: Encyclopedia Updated)
The queens shared a symbiotic link: their power grew the closer they were to one another, and they fought as a pair. Side by side, their defences were strong enough to throw up a barrier that the Toa's weapons couldn't break. (BIONICLE 8: The End of the Toa?; BIONICLE: Encyclopedia Updated)
Powers#
Gahdok and Cahdok together wielded the elemental powers of all six BohrokBohrokHive-minded mechanical creatures designed to reshape worlds, the Bohrok represent a threat the Toa Mata never expected. breeds: the fire of the TahnokTahnokFire-element Bohrok swarms from Mata Nui, controlled by krana and armed with Fire Shields., the water of the GahlokGahlokWater-element Bohrok swarms that flooded Mata Nui's aquatic zones with relentless purpose., the acid of the LehvakLehvakAcid-wielding Bohrok that dissolve obstacles as easily as enemies., the stone of the PahrakPahrakStone-aligned Bohrok swarm units that forced the Toa Mata to realize they couldn't win through isolated victories., the earth of the NuhvokNuhvokThe earth-dwelling Bohrok whose rigid nature made them dangerously predictable., and the ice of the KohrakKohrakIce-wielding Bohrok from the 2002 original wave, the foundational design for all subsequent Bohrok variants.. In the comics Gahdok opened with fire before switching to stone. The two could be told apart by colour and antennae, Gahdok being red with short, clubbed antennae. (BIONICLE 8: The End of the Toa?; BIONICLE: Encyclopedia Updated)
The queens could also cast illusions to guard their nest from intruders, and they spoke to the KranaKranaThe small organic creatures that controlled the Bohrok, made in eight types plus a mutated variant, without which no Bohrok could serve the swarm. and to the Toa by telepathy. In the nest, illusions kept two of the Toa Mata locked in fights with phantoms while the queens struck at the rest. (BIONICLE Chronicles 2: Beware the Bohrok; BIONICLE: Encyclopedia Updated; BIONICLE Legends 7: Prisoners of the Pit)
The queens also made KranaKranaThe small organic creatures that controlled the Bohrok, made in eight types plus a mutated variant, without which no Bohrok could serve the swarm., the living controllers worn by BohrokBohrokHive-minded mechanical creatures designed to reshape worlds, the Bohrok represent a threat the Toa Mata never expected.. A carving in the tunnels beneath the island showed the Bahrag dipping an object into energised protodermisEnergized ProtodermisA sentient substance that could remake or annihilate any being that touched it. One of the Matoran Universe's most lethal hazards. and drawing out a krana. There were eight KranaKranaThe small organic creatures that controlled the Bohrok, made in eight types plus a mutated variant, without which no Bohrok could serve the swarm. types in total, all made by the BahragBahragCahdok and Gahdok were the twin queens of the Bohrok, sealed in a protodermis cage by the Toa Mata and later released to finish their cleansing of Mata Nui.. (BIONICLE Chronicles 2: Beware the Bohrok; BIONICLE: Encyclopedia Updated)
The Great Awakening#

The swarms woke after the Toa MataWho 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. defeated TeridaxTeridaxTeridax orchestrated a thousand-year scheme that ended with him occupying the Great Spirit Robot itself before his death on Bara Magna. beneath the island. To keep the Toa busy, Teridax sent a signal that roused the Bahrag early. With no instructions for being woken ahead of time, the queens took it as the moment to cleanse the island and sent the swarms out. (Mata Nui Online Game; BIONICLE 4: The Bohrok Awake; BIONICLE: Encyclopedia Updated)
The swarms struck across the island in coordinated waves. TahnokTahnokFire-element Bohrok swarms from Mata Nui, controlled by krana and armed with Fire Shields. attacked Ta-Koro first, NuhvokNuhvokThe earth-dwelling Bohrok whose rigid nature made them dangerously predictable. collapsed the caves of Onu-Wahi and GahlokGahlokWater-element Bohrok swarms that flooded Mata Nui's aquatic zones with relentless purpose. flooded Onu-Koro. Their goal was to clear Mata NuiMata Nui (Location)An island created by accident on the Great Spirit's face, home to the Matoran for a thousand years. of everything that didn't belong there. (Mata Nui Online Game; BIONICLE Chronicles 2: Beware the Bohrok; BIONICLE 4: The Bohrok Awake)
The Toa MataWho 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. fought the swarms in every region of Mata NuiMata Nui (Location)An island created by accident on the Great Spirit's face, home to the Matoran for a thousand years., but beating individual Bohrok couldn't stop the swarms while the queens still directed them through the KranaKranaThe small organic creatures that controlled the Bohrok, made in eight types plus a mutated variant, without which no Bohrok could serve the swarm.. (BIONICLE Chronicles 2: Beware the Bohrok)
Battle at the Bohrok Nest#
The Toa MataWho 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. gathered KranaKranaThe small organic creatures that controlled the Bohrok, made in eight types plus a mutated variant, without which no Bohrok could serve the swarm. from each of the six BohrokBohrokHive-minded mechanical creatures designed to reshape worlds, the Bohrok represent a threat the Toa Mata never expected. breeds and fitted them into the niches of a lower chamber of the nest, which opened the way to the Exo-ToaExo-ToaToa-sized powered armor built for the Brotherhood of Makuta, worn briefly by the Toa Mata against the Bahrag and later used as enforcers under Teridax. armour. Equipped with the suits, they went after the BahragBahragCahdok and Gahdok were the twin queens of the Bohrok, sealed in a protodermis cage by the Toa Mata and later released to finish their cleansing of Mata Nui. and drove the two queens toward the centre of their chamber. (BIONICLE Chronicles 2: Beware the Bohrok; BIONICLE 7: What Lurks Below)
This proved to be a mistake. The closer Gahdok and Cahdok came to one another, the more their combined power surged. The queens froze LewaLewaToa of Air, member of the Toa Mata and Toa Nuva, whose career was marked by repeated possession, body theft, and aerial campaigns from Le-Wahi to Karda Nui., buried KopakaKopakaKopaka was the Toa Nuva of Ice, the loner of the Toa Mata, and one of the six warriors created on Artakha to protect the Great Spirit Mata Nui. in stone and smothered GaliGali, Toa of WaterThe Toa Nuva of Water and conscience of the Toa Mata, whose attunement to her element anchored the team across every campaign from Mata Nui to Karda Nui. in flame, while illusions trapped 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. and OnuaOnuaOnua 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.. 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. held off a hail of rocks with his Mask of Shielding, but only just. The Exo-ToaExo-ToaToa-sized powered armor built for the Brotherhood of Makuta, worn briefly by the Toa Mata against the Bahrag and later used as enforcers under Teridax. armour, built to add physical force, was also dampening the ToaThe Toa: Heroes of the Matoran UniverseThe Toa were biomechanical guardians sworn to protect the Matoran, bound by a strict code and defined by sacrifice across every age of the universe.'s elemental powers. (BIONICLE Chronicles 2: Beware the Bohrok; BIONICLE 8: The End of the Toa?)
Gali called to Pohatu, who broke free of his illusion and hurled a boulder that stunned the queens. Tahu then ordered the ToaThe Toa: Heroes of the Matoran UniverseThe Toa were biomechanical guardians sworn to protect the Matoran, bound by a strict code and defined by sacrifice across every age of the universe. to shed the Exo-ToaExo-ToaToa-sized powered armor built for the Brotherhood of Makuta, worn briefly by the Toa Mata against the Bahrag and later used as enforcers under Teridax. suits, surround the queens and combine their six elemental powers. Together they formed a prison of solid protodermisProtodermisThe engineered substance building the Matoran Universe, protodermis exists in countless refined states from mundane metal to diamond-hard crystal to the destruction-or-transformation force of energized form. around Gahdok and Cahdok. The queens weren't killed. They were imprisoned, and Gahdok warned the Toa they couldn't imagine what they had unleashed. (BIONICLE Chronicles 2: Beware the Bohrok; BIONICLE 8: The End of the Toa?)
Aftermath#
With the BahragBahragCahdok and Gahdok were the twin queens of the Bohrok, sealed in a protodermis cage by the Toa Mata and later released to finish their cleansing of Mata Nui. sealed, the BohrokBohrokHive-minded mechanical creatures designed to reshape worlds, the Bohrok represent a threat the Toa Mata never expected. lost their direction and the swarms stopped their assault. As the chamber collapsed, the Toa MataWho 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. sank into tubes of Energised ProtodermisEnergized ProtodermisA sentient substance that could remake or annihilate any being that touched it. One of the Matoran Universe's most lethal hazards. and emerged as the Toa NuvaToa Mata and Toa NuvaSix biomechanical heroes created by the Great Beings to awaken Mata Nui and defeat the Brotherhood, transformed once and tested across an entire age.. (BIONICLE Chronicles 2: Beware the Bohrok; BIONICLE 8: The End of the Toa?)
Gahdok's warning came true. The queens' defeat woke the Bohrok-KalBohrok-KalSix elite Bohrok designed to free the imprisoned Bahrag, they nearly defeated the Toa Nuva before the Toa turned their own powers against them., six elite Bohrok sent to free them. The Kal stole the Toa Nuva's symbols and reached the Bahrag's prison, but they were overloaded with the energy of the Nuva symbols and stopped short of freeing their masters. (BIONICLE Chronicles 3: Makuta's Revenge; BIONICLE 12: Absolute Power)
Status#
Gahdok and Cahdok didn't stay sealed. Months later the Toa NuvaToa Mata and Toa NuvaSix biomechanical heroes created by the Great Beings to awaken Mata Nui and defeat the Brotherhood, transformed once and tested across an entire age., having learned that the island had to be cleared for the good of the universe, broke the seal with their elemental powers. After a short talk, the queens sent a signal that woke the swarms again, and the BohrokBohrokHive-minded mechanical creatures designed to reshape worlds, the Bohrok represent a threat the Toa Mata never expected. went back to their appointed task of clearing Mata NuiMata Nui (Location)An island created by accident on the Great Spirit's face, home to the Matoran for a thousand years.. (BIONICLE Legends 7: Prisoners of the Pit)
Legacy#
The BahragBahragCahdok and Gahdok were the twin queens of the Bohrok, sealed in a protodermis cage by the Toa Mata and later released to finish their cleansing of Mata Nui. left their mark on the Toa's story beyond their own defeat. Their capture freed the Toa Mata to become the Toa NuvaToa Mata and Toa NuvaSix biomechanical heroes created by the Great Beings to awaken Mata Nui and defeat the Brotherhood, transformed once and tested across an entire age., their failsafe in the Bohrok-KalBohrok-KalSix elite Bohrok designed to free the imprisoned Bahrag, they nearly defeated the Toa Nuva before the Toa turned their own powers against them. cost the Toa Nuva their powers for a time, and their release later sent the swarms back to finish the job they had been built for. (BIONICLE Chronicles 2: Beware the Bohrok; BIONICLE Chronicles 3: Makuta's Revenge; BIONICLE Legends 7: Prisoners of the Pit)
Frequently asked questions
- Who is Gahdok?
- Gahdok was one of the twin Bahrag queens, ruling the Bohrok swarms alongside her sister Cahdok from a nest deep beneath Mata Nui. The two were created by the Great Beings to lead the Bohrok in cleansing the island.
- What was the purpose of Gahdok and Cahdok?
- The Great Beings made them to direct the Bohrok in clearing the island of Mata Nui back to the way it had been in the Before-Time, and to make the krana the Bohrok wore. They knew nothing beyond that task.
- What powers did Gahdok and Cahdok have?
- Together they wielded the elemental powers of all six Bohrok breeds: fire, water, stone, earth, ice and acid. They could also cast illusions and speak telepathically, and their power grew the closer they were to one another.
- How were the Bohrok swarms awakened?
- Makuta Teridax sent a signal that woke the Bahrag early. With no instructions for being woken ahead of time, the queens assumed the moment to cleanse the island had come and sent the swarms out.
- How were Gahdok and Cahdok defeated?
- After the Exo-Toa armour hampered their elemental powers, the Toa Mata shed the suits, surrounded the queens and combined their six elements into a prison of solid protodermis. Months later the Toa Nuva broke that seal and freed them.
Gallery

Images via BIONICLE Wiki (Biosector01)
Sources
- BookBIONICLE Chronicles 2: Beware the Bohrok, C. A. Hapka, Scholastic, 2002
- BookBIONICLE Chronicles 3: Makuta's Revenge, C. A. Hapka, Scholastic, 2003
- ComicBIONICLE 4: The Bohrok Awake, Greg Farshtey, DC Comics for LEGO, 2002
- ComicBIONICLE 7: What Lurks Below, Greg Farshtey, DC Comics for LEGO, 2002
- ComicBIONICLE 8: The End of the Toa?, Greg Farshtey, DC Comics for LEGO, 2002
- ComicBIONICLE 12: Absolute Power, Greg Farshtey, DC Comics for LEGO, 2003
- GameMata Nui Online Game, Templar Studios for The LEGO Group, 2001
- BookBIONICLE Legends 7: Prisoners of the Pit, Greg Farshtey, Scholastic, 2007
- BookBIONICLE: Encyclopedia Updated, Greg Farshtey, Scholastic, 2007
Spotted a factual error or a primary source we missed? Email a correction. Every flagged claim gets reviewed.
Followed from this entry

Bahrag
Cahdok and Gahdok were the twin queens of the Bohrok, sealed in a protodermis cage by the Toa Mata and later released to finish their cleansing of Mata Nui.

Tahu (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.

Exo-Toa
Toa-sized powered armor built for the Brotherhood of Makuta, worn briefly by the Toa Mata against the Bahrag and later used as enforcers under Teridax.

Teridax
Teridax orchestrated a thousand-year scheme that ended with him occupying the Great Spirit Robot itself before his death on Bara Magna.

Lehvak
Acid-wielding Bohrok that dissolve obstacles as easily as enemies.

The Great Beings
Scholar-inventors of Spherus Magna whose creations shaped the Matoran Universe and whose absence defined the conflicts that followed.
Mentioned in9 entries
Bahrag
Cahdok and Gahdok were the twin queens of the Bohrok, sealed in a protodermis cage by the Toa Mata and later released to finish their cleansing of Mata Nui.
Krana
The small organic creatures that controlled the Bohrok, made in eight types plus a mutated variant, without which no Bohrok could serve the swarm.
Protodermis Cage
The combined-elemental prison forged when six Toa of differing elements channelled their powers into a single solid Protodermis seal, used most famously on Teridax and the Bahrag.
Takua's Journey Across Mata Nui: The Chronicler's Path to Kini-Nui
A wandering Ta-Matoran with no memory of how he reached the beach walked the six villages of Mata Nui, witnessed the Toa Mata's awakening, and organized the defense that held Kini-Nui.
The Battle of Ga-Koro: The Pahrak Siege of the Floating Village
The Pahrak assault on the floating village of Ga-Koro, held off by the Ga-Matoran and their Po-Matoran guests until the Toa Mata sealed the Bahrag and the swarm fell still.
The Bohrok Swarms
The six-tribe Matoran Universe cleanup force awakened to strip the island of Mata Nui back to bare rock for the Great Spirit's reawakening.
The Bohrok War
The campaign of the Toa Mata against the six Bohrok swarms on the island of Mata Nui, ending in the sealing of the Bahrag and the Toa's transformation into the Toa Nuva.
Toa Mata and Toa Nuva
Six biomechanical heroes created by the Great Beings to awaken Mata Nui and defeat the Brotherhood, transformed once and tested across an entire age.
Bohrok-Kal
Six elite Bohrok designed to free the imprisoned Bahrag, they nearly defeated the Toa Nuva before the Toa turned their own powers against them.
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