When an ousider appears in the ThunderClan's midst, it drives the Clans further apart and as tension mounts they must decide who they can trust before it is too late.

The Forgotten Warrior 2015, Turtleback Books

ISBN-13: 9780606377263

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The Forgotten Warrior 2012, Turtleback Books

ISBN-13: 9780606271295

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The Forgotten Warrior 2011, HarperCollins, New York

ISBN-13: 9780061555220

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The Forgotten Warrior 2011, HarperTorch, New York, NY

ISBN-13: 9780061555244

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