Ostra Nui

Ostra Nui is a pair of large islands where ToaOstra's stories take place.

History
10,000 years ago, a large earthquake separated Ostra Nui from the Southern Continent. A Makuta named Nozibak was still on the island when it separated and was left there, drifting on his own. Eventually, using his own Shadow power, he created Rahi. He trained many Rahi into being his slaves, and ruled the land.

The Hanrei Chronicles
1,000 years ago, the Toa Hanrei heard of Ostra Nui and decided to investigate. Tohrik, the Toa of Fire, led his team, Fahro, Toa of Air, Idoni, Toa of Water, Piricos, Toa of Stone, Ourio, Toa of Stone, and Artius, Toa of Ice, to this mysterious island by boat. When they arrived, they were attacked by many Bone Bears. Lerui, a Le-Matoran that snuck onto the boat, tamed on of the Bone Bears (which he named Pakari Nui) and scared off the other Bone Bears.

SPOILER FOLLOWS
The Toa fought the Makuta for 999 years