Minnowpaw is just like any other RiverClan apprentice. She is loyal, strong, a determined to become a warrior that her Clan can be proud of. But a strange accident leaves Minnow with an invisible curse that starts to take the lives of those around her. One by one, Minnowpaw's Clanmates begin to turn on her, and tragedy threatens to tear RiverClan in two. Angry, confused, and scared for her future, Minnowpaw begins to believe that the best way to serve her Clan is to leave it behind forever.