In The Wolf´s Heart, Grimulf, the richest and most feared man in Eastwick, plans a journey to Miklagard. In order to have favourable sailing winds, the gods must be appeased – with a human sacrifice! When Halvdan learns who is to be sacrificed he needs to move fast, for it is someone he knows. But how can he and his friend Björn Smith prevent what is going on when they have all of Grimulf´s warriors against them?

Halvdan the Viking is a series by Martin Widmark and illustrator Mats Vänehem, about the young boy Halvdan who finds himself in one adventure after the other, together with his friend Meia.