It is early spring, a turbulent, perilous time of sudden storms, frozen river fractures and drifting ice. Fleeing from a demon intent on devouring his souls, Wolf is swept out to Sea far from the Forest and his pack. The ocean too teems with danger: sea wolves, sharks and hunters of the deep, and the demon is gaining ground. Torak and Renn must race to save their pack-brother, battling the harsh, icy waves and merciless torrents. If they can't find Wolf in time, the bond between them will be severed for ever.