controlled Tobias, who attacks her. Tris realizes she can't bring herself to kill him, and surrenders. This causes Tobias to break through the special sight-and-sound-only simulation. Freed, Tobias helps Tris shut down the Erudite simulation and free the Dauntless from their mind control. They rejoin Caleb, Marcus and Peter, who helped Tris find the control room in exchange for his safety. The group boards a train to the Amity sector to find the rest of the Abnegation survivors.