Firestar, leader of the Thunder Clan, sets off on a harrowing journey to find a long-lost clan of cats that had been forced to leave the forest many moons ago. There is peace at last between the warrior Clans, and Firestar is proud of the strength and unity of the cats he leads in ThunderClan. But his dreams are haunted by wailing cats fleeing a terrible disaster. With unexpected help from an old kittypet friend, he discovers a shocking secret: StarClan,...