Kotan World

Kotan World, also known as The Sealed Darkness Dimension or Garaxial's Realm was created as a result of Mata Nui's and Skralla's decision to turn back time. It was a world full of peace and prosperity, now a realm of darkness and fear. It is the current location of Garaxial and his Shadow Entities. After Sakari and her friends saved Spherus Magna, the bond between Kotan and Averax broke thus Kotan ended up "destroyed".

Creation and Kan's Reign
Upon it's creation, the Great Beings modified it in order to contribute and to prevent the Time Paradox. They built the fortress and created many residents including Kan, Detex, Sarhax, and Eajax. After they departed, they finished the work and Kan was declared its ruler.

He made sure that the world went smoothly and that his people were always happy and grateful. Around 100,100 years ago, Garaxial fell into this dimension after being exiled from Spherus Magna, but he fell unconscious. Three of Kan's friends, Sarhax, Detex, and Eajax discovered the newcomer and brought him to Kan, hoping that the new arrival would be alright. Garaxial wanted to leave and go back to Spherus Magna but Kan offered him to stay. Kan showed him a gigantic laboratory where he could work on his scientific discoveries and projects. Garaxial accepted the offer and stayed, and he taught Sarhax, Detex and Eajax on building inventions, creating protodermis as well as other projects that Garaxial wanted to do.

Eventually, Agarax arrived in this dimension as he was told to travel in various worlds, and planed to stay a couple of days before moving on. However, Kan invited him to stay and asked Garaxial if he could be another student. Garaxial accepted while Agarax wasn't quite too sure. He decided to stay for a while, but promised to himself that he'll move on if anything goes wrong in this world. His fears came true one day when Garaxial was building a "time chair" in order to manipulate time. As he was about to test it, bolts of electricity went out of control and struck him down. As a result of the sudden burst, Garaxial's light was draining, leaving him nothing but the shadows within.

Garaxial's Reign
Exercising his new powers, Garaxial transformed his students into slaves while Agarax narrowly escaped for a while, hoping that he wouldn't see him again. However, Garaxial sent his slaves to find Agarax and capture him. The plan worked as Agarax lost his ability to cross worlds and lost his body as well, becoming a mass of shadows.

Over the course of time, Garaxial has sent his Shadow Entities to capture various beings and recording other worlds. He worked on a project in cloning beings, and his first test was Stronius from Bara Magna. Stronius was cloned and the original one was locked away while the duplicate returned to Bara Magna in order to spread a deadly plague, however, fast action by Agarax manged to remove the plague before it could spread and infect the citizens. When Skralla, Mata Nui and Belirax saved Bara Magna from the Skrall taking over, a signal was sent through radiation, telling Garaxial that the time was come to steal Skralla's powerful necklace in order to begin his conquest. He waited until the Glatorian were celebrating in Atero when he sent his Shadow Entities to steal the necklace.

However, a group of Glatorian, allied with Skralla traveled various worlds to reach this dimension. The team faced a dangerous battle against Agarax and Garaxial. The Glatorian managed to get the necklace back and escaped to Bara Magna and saved everyone once more.

All but one of the Glatorian returned home. Malum was captured during the fight and was undergoing in an experiment. His body was cloned and he was sealed away while his other self was sent back to Bara Magna, in order to spread a deadly plague. However, Agarax knew what was going on, so he assisted him on his escape and sent him to another dimension.

After Spherus Magna was reborn, Garaxial and his students (except Agarax) kept a close eye on the city of Averax Magna. When Sakari was born, Garaxial took this chance to strike by kidnapping the child.

Destruction
As a result of the battle in Averax Magna, Kotan World has been destroyed once the bond between Kotan and Averax collapsed. This happened because Sakari and her friends broke the time paradox and the world of Averax was able to continue moving forward. Thus, all of the citizens in this world died.

Landscape
This dimension had several settlements, connecting to a fortress on the hills. The fortress itself was on top of a gigantic slope, on the side of a mountain. On occasions, the ice and snow from the mountain would melt and a beautiful river would flow for weeks, then stopped. Many would take that as a sign of harvest, since most of the water in this world is scarce.

After Garaxial lost his light and exiled Kan, he transformed this place from a world of light into a realm of shadows. He enslaved the villagers and made sure that any of the water would be given to him. Sometimes, he would utilize the water for his experiments.

Few locations are known...here's a list of them: These places have been destroyed once Averax Magna was finally free from its bonds with this world.
 * Kotan Fortress
 * Kan's Throne Room
 * Garaxial's Lab
 * Pool of Protodermis
 * Control Room
 * Stasis Tubes
 * Shadow Village (formerly called Kotan Village)

Connection with Averax Magna
Kotan World is a dimension that should not exist, but it does as a result of the time paradox. It was created as a result of Mata Nui and Skralla turning back their time in order to keep Averax Magna and the entire Spherus Magna protected. It can be considered its "Dark Twin", due to Garaxial taking the world in his own hands and casting his powers of shadow after the accident that drained his light away. The only way to destroy this world is to break the time paradox.

It has since been destroyed after the heroes broke free from the time paradox.

Appearances
Princess Skralla Arc:
 * The First Story (briefly; not mentioned by name)
 * The Rising Darkness
 * The Great Plague

Averax Magna Chronicles Arc:
 * Kingdoms of Paradise
 * The Frozen Time
 * A Final Wish