Hrolf the young Viking has left the service of Jarl Dragonheart and sails with Jarl Gunnar Thorfinnson.
The novel culminates in a bloody battle where Viking fights Viking but Hrolf begins to fulfill his destiny as Hrolf the Horseman.
When they find a home off the Frankish coast they begin to accumulate a vast fortune which earns them the enmity of other Vikings.
Hrolf the young Viking has left the service of Jarl Dragonheart and sails with Jarl Gunnar Thorfinnson