An epic tale of enchanting adventure from the acclaimed author of The Sevenwaters Trilogy.

All Eyvind has ever wanted is to become one of the greatest Viking warriors - a Wolfskin - and fight for his leader in the name of the Warfather god, Thor. He can think og no future more glorious. But his friend Somerled, a strange and lonely boy, has his own plans for the future. A childhood oath, sworn in blood, binds these two in lifelong loyalty.

A world away, Nessa, niece of King Engus of the Folk, begins to learn the ways of the mysteries. Neither the young priestess nor her people can know what lies ahead for them.

Eyvind and Somerlad seem set to follow very different paths. One becomes a fearless servant of Thor, the other a scholarly coutier. But a voyage of discovery led by Somerled's much respected brother, Ulf, brings the two friends together agian as they accompany a group of settlers to the beautiful islands rumoured to lie across the western sea. When a tragic event occurs on board one of the ships, Eyvind begins to suspect that it may not have been an accident...

Ulf's new settlemant begains in harmony with the natives of the isles, led by King Engus. Then one day, on a trip to a holy place of the Folk, a brutal murder occurs and the peace is shattered. Now Eyvind begins to feel the ties of his boyhood oath, and realises what sort of future Somerled had in mind for himself all those years ago...