"Revenge" is the third book in the "Viking Blood" series by Marianne Slot. A story of vengeance, friendships, and love. Four years have passed and Hauge's mother Aasa has married Sven. The men travel to the winter market, where many a good deal is done. Once again Hauge meets his Christian friend Hannibal. But they are brutally attacked and many die. Hauge is made chieftain and can finally avenge his father.