Legends of Metru Nui (Bionicle Adventures #4)

Legends of Metru Nui (Bionicle Adventures #4) by Farshtey, Greg. mass_market edition. ISBN: 9780439627474.

After their defeat of the Morbuzakh and the shape-shifting Krahka, the Toa Metru expect to be hailed as heroes. Instead, they are betrayed by someone they thought they could trust. Three of the Toa are arrested. In prison, they meet a mysterious stranger who helps them to escape -- and to learn more about their new powers. The remaining Toa are forced to flee through the city, avoiding security forces and the Dark Hunters who try to capture them. Can the Toa reunite and defeat their new enemy? Or has the their luck finally run out?