sentences:  Somerled, a quiet boy of the same age, befriends Eyvind and binds him to loyalty with a blood oath.After becoming a Wolfskin, Eyvind voyages to the Isles of Light with Somerled, his brother Eirek, Somerled's brother Ulf (the leader of the expedition), and many others.The Vikings quickly establish a peace treaty with the native island folk, and build a settlement.