Sonic Chronicles: The Dark Brotherhood

Following the defeat of Doctor Eggman, the game initially focuses on the events surrounding the kidnapping of Knuckles and the disappearance of the Chaos Emeralds. It then moves on to follow the cast of characters across two dimensions as they meet a new ally, Shade the Echidna, and attempt to halt the invasion of their world by Ix, the leader of Shade’s tribe, the Nocturnus.