Erin Hunter's number one nationally best-selling Warriors series continues in Warriors: Omen of the Stars. The fifth book in this fourth series, Warriors: Omen of the Stars #5: The Forgotten Warrior, brings more adventure, intrigue, and thrilling battles to the epic world of the warrior Clans. A divided StarClan has driven a deep rift between the warrior Clans, and the spirits of the Dark Forest are gaining strength. Now the warrior cats must decide whose word they can trust - before it's too late.