De-Koro
The De-Matoran Village of the Tren Krom Peninsula
De-Koro is the silent village of De-Matoran on the Tren Krom Peninsula, where Mazeka found the future Toa Krakua and where Vultraz knocked out the whole village with a blast of sound.
De-Koro is a small village of De-MatoranDe-MatoranMatoran with Sonics powers who valued silence so deeply that they didn't welcome Toa and the conflict they bring. on the Tren Krom PeninsulaThe Tren Krom PeninsulaThe Tren Krom Peninsula was a rocky strip of the Northern Continent ruled by Makuta Gorast, riddled with acid falls and Razor Crystal cliffs, and home to Ko, Ta, and De-Matoran villages.. At a glance it looks like any other village, a ring of huts around a central meeting area, but an absolute silence hangs over every inch of it. De-Matoran are so sensitive to noise that they train themselves from early on to make no more sound than they need to. (Brothers In Arms)
Location#
The village sits on the Tren Krom Peninsula, a region Mazeka knows well, yet he had never seen it before Jerbraz brought him there. (Brothers In Arms)
The peninsula is dangerous country. Makuta Gorast chose it as her domain because it was the most dangerous region and the hardest to rule, and she had to overcome its Acid Falls and fight creatures made by Tren Krom to hold it. (BIONICLE: Makuta's Guide to the Universe)
It also has volcanoes. Before he ever found De-Koro, Mazeka watched Vultraz blow open the side of one to bury another village under lava for the sake of an intact lava-gem. (Brothers In Arms)
The De-Matoran biology#
De-Matoran are Matoran of Sonics, and their hearing is extraordinarily acute. Jerbraz tells Mazeka they're probably hearing every word the two of them say, and would be even from a kio away. (Brothers In Arms)
So the village is quiet on purpose. When Mazeka whispers a question so softly he can barely hear it himself, a Matoran in the village still stops and looks round. (Brothers In Arms)
The same sensitivity shapes how the village treats outsiders. The De-Matoran hate loud sounds, and that's why no Toa are allowed in: where Toa go, battles follow, and battles are noisy. (Brothers In Arms)
KrakuaKrakuaA Toa of Sonics from De-Koro who served the Order of Mata Nui and delivered a devastating prophecy to Vakama.#
Krakua was one of the villagers, though the others kept away from him and gave him nasty looks. He was humming to himself. Jerbraz thought that fitted someone who might become a Toa, since Matoran with the calling can be a little eccentric. (Brothers In Arms)
The Order of Mata NuiThe Order of Mata NuiThe covert organization founded by Helryx to serve the Great Spirit directly, operating in concealment from a fortress on Daxia and waging the open war against the Brotherhood of Makuta that decided the fate of the universe. wanted him safe so he could be trained. Toa of Sonics are rare, Jerbraz explains, because they're vulnerable to their own power, and the Order meant to make sure Krakua could use all of it when he became a Toa. (Brothers In Arms)
The MazekaMazekaA Ko-Matoran spy for the Order of Mata Nui obsessed with becoming the perfect warrior.-VultrazVultrazVultraz is a Shadow Matoran, formerly a Ta-Matoran, who wears a powerless Mask of Scavenging and carries a sword. Dark red and black in coloration, he possesses an active power of Shadow while his former affinity for Fire remains inactive. He resides in a parallel universe. incident#
Mazeka slipped into the village, careful not to call out, and drew Krakua to the outskirts. Before he could explain much, he saw something rolling into the middle of the village. He dived on Krakua and clamped his hands over his audio receptors just as a wall of sound struck. The De-Matoran dropped almost at once, and Mazeka nearly passed out himself. (Brothers In Arms)
A Ta-Matoran Mazeka didn't recognise walked into the clearing, tossed the device aside and began rolling the unconscious villagers over with his sword, looking for someone. When Mazeka tried to lead Krakua away, he snapped a branch, and the stranger threw a dagger that Krakua pulled him clear of. (Brothers In Arms)
Mazeka told Krakua to run, and the De-Matoran's feet left the ground as the invisible JerbrazJerbrazJerbraz is an invisible member of the Order of Mata Nui. He is based on Spherus Magna and carries an Invisible Sword as his tool. carried him off into the jungle. Mazeka fought the Ta-Matoran alone, lost his blade and his mask, and only recognised him when he twirled his sword before the killing blow. It was Vultraz, whom Mazeka believed dead, his appearance changed. (Brothers In Arms)
Vultraz stopped the blade short. He didn't need to kill Mazeka, he said: from now on every breath Mazeka took would be one Vultraz allowed. He promised to catch up with the De-Matoran later, then vanished into the jungle. (Brothers In Arms)
The role of JerbrazJerbrazJerbraz is an invisible member of the Order of Mata Nui. He is based on Spherus Magna and carries an Invisible Sword as his tool.#
Jerbraz kept Mazeka from chasing Vultraz. They had come for Krakua, and Krakua was somewhere safe. Mazeka agreed, but asked a favour in return: training, so that he could win his next fight with Vultraz. (Brothers In Arms)
Aftermath#
The attack shaped Mazeka more than the village. He walked away from De-Koro set on learning to fight clean and dirty, so he could hunt Vultraz down, which is where the rest of Brothers In Arms picks up. (Brothers In Arms)
What remained undocumented#
The serial never names the village. The name De-Koro comes from writer Greg Farshtey's later comments, not from the story. Brothers In Arms also gives no population, leader or Turaga for it, and Krakua is the only villager named. (Brothers In Arms)
Frequently asked questions
- What is De-Koro?
- De-Koro is a small village of De-Matoran, Matoran of Sonics, on the Tren Krom Peninsula. In Brothers In Arms it isn't named; it's simply a silent village of huts around a central meeting area, home to the future Toa Krakua.
- Why was De-Koro kept so quiet?
- De-Matoran are very sensitive to noise, so they train themselves from early on not to make more sound than they need to. Their hearing is so sharp that they could probably hear a conversation a kio away.
- Why weren't Toa allowed in De-Koro?
- Because where Toa go, battles follow, and battles are noisy. The De-Matoran hate loud sounds, so no Toa are allowed in the village.
- What happened when Vultraz attacked De-Koro?
- Vultraz rolled a sonic device into the centre of the village and set off a wall of sound that knocked the De-Matoran unconscious. Mazeka saved Krakua by clamping his hands over his audio receptors, and Jerbraz, who is invisible, carried Krakua off to safety. Vultraz beat Mazeka in a sword fight but chose to spare him.
- Who was Krakua's connection to De-Koro?
- Krakua was a De-Matoran of the village. The other villagers avoided him because he hummed to himself, and Jerbraz suspected that was a sign he had the calling to become a Toa.
Sources
- SerialBrothers In Arms, Greg Farshtey, BIONICLEstory.com, 2008
- BookBIONICLE: Makuta's Guide to the Universe, Greg Farshtey, 2008 (Papercutz US edition 2010)
Spotted a factual error or a primary source we missed? Email a correction. Every flagged claim gets reviewed.
Followed from this entry

The Tren Krom Peninsula
The Tren Krom Peninsula was a rocky strip of the Northern Continent ruled by Makuta Gorast, riddled with acid falls and Razor Crystal cliffs, and home to Ko, Ta, and De-Matoran villages.
De-Matoran
Matoran with Sonics powers who valued silence so deeply that they didn't welcome Toa and the conflict they bring.

The Order of Mata Nui
The covert organization founded by Helryx to serve the Great Spirit directly, operating in concealment from a fortress on Daxia and waging the open war against the Brotherhood of Makuta that decided the fate of the universe.

Jerbraz
Jerbraz is an invisible member of the Order of Mata Nui. He is based on Spherus Magna and carries an Invisible Sword as his tool.

Vultraz
Vultraz is a Shadow Matoran, formerly a Ta-Matoran, who wears a powerless Mask of Scavenging and carries a sword. Dark red and black in coloration, he possesses an active power of Shadow while his former affinity for Fire remains inactive. He resides in a parallel universe.

Mazeka
A Ko-Matoran spy for the Order of Mata Nui obsessed with becoming the perfect warrior.
Mentioned in3 entries
Koro
The Koros were the six elemental villages built on Mata Nui after the Great Rescue, on sites the Toa Metru had chosen, each tied to one element and one Turaga.
The Tren Krom Peninsula
The Tren Krom Peninsula was a rocky strip of the Northern Continent ruled by Makuta Gorast, riddled with acid falls and Razor Crystal cliffs, and home to Ko, Ta, and De-Matoran villages.
The Northern Continent
Big enough that the Brotherhood needed multiple Makuta to watch it, the Northern Continent and its Tren Krom Peninsula gave the canon some of its most interesting smaller players.
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