Bluestar chooses to name Cloudpaw a warrior due to the fact that he doesn't believe in StarClan, while neglecting the other apprentices. Two of the apprentices, Swiftpaw and Brightpaw, decide to track down what is stealing ThunderClan's prey in an attempt to prove themselves. However, the prey-stealers turn out to be a ravenous pack of dogs, and Swiftpaw is killed and Brightpaw badly disfigured by the pack, losing half of her face. Believing that Brightpaw would die, Bluestar "promotes" Brightpaw to the status of warrior, but she shames Brightpaw, and by extension StarClan, by giving her the name Lostface.