Thorgal: Aniel (Thorgal #28)

Thorgal and his friends are finally on their way back to the lands of the Vikings of the North. Time is of the essence, for his son Aniel is still possessed by an evil entity, and he is weakening by the day. But the trip is fraught with danger, and soon they find themselves marooned on a mysterious shore. Thorgal will have to fight once more to give his son a future...