From the Ice Wastes beyond the Cinder Wall emerges an unlikely hero. Rejected by his village and left to die, young Uki is given life and unique powers by a long-buried spirit from the time of the Ancients...and a life or death mission.

Joined by two other outcasts - a trained assassin who refuses to kill people and a very short rabbit who rides the fastest jerboa on the plains - Uki must capture Valkus, the Spirit of War, before rabbitkind destroys itself in conflict.