A new adventure begins in Erin Hunter's #1 bestselling Warriors series This hardcover edition also includes a double-sided jacket with a bonus poster For many moons, ThunderClan, ShadowClan, RiverClan, and WindClan have lived in peace in their territories around the lake. But now they must decipher a mysterious prophecy--a message that will send one young medicine cat apprentice on a quest to determine the fate of all the warrior Clans. Full of epic...