My Little Toa: Quest for the Masks

A long time ago, on the mythical island of Okoto, all lived in harmony. It was a place of wonders and beautiful landscapes. From the island's elemental forces, two sisters, known as the Mask Makers, created Masks of Power. Each sister had a special mask: Luna owned the Mask of Moonlight and Celestia the Mask of Sunlight. The sisters provided the islanders with many masks but Celestia's were the most treasured. Her sister became envious and forged an evil plan...

It was a sacred law that a mask could never contain the power of more than one element, otherwise it would become too strong and dangerous. But Luna wanted to create the most powerful mask of all time: the Mask of Ultimate Power. When Luna put it on, it took control of her, transforming her into Nightmare Moon, and the island began to shake and crumble. Realizing what her sister had done, Celestia managed to knock the mask from Nightmare Moon's face. The shockwave rolled across the land, cursing both sisters into an endless sleep. The masks were scattered across the island, waiting for a time when someone would come looking for them.