: The narrative heavily integrates Norse myths, which are revealed to be Eivor's interpretations of the memories of the Isu , an ancient advanced civilization. Eivor discovers they are the reincarnation of the Isu leader Odin , while their brother Sigurd and mentor Basim also share connections to these ancient figures. The Modern-Day Story

Eivor Varinsdottir (born 847), also known as the Wolf - Facebook

: Eivor becomes embroiled in the ancient conflict between the Hidden Ones (precursors to the Assassins) and the Order of the Ancients (precursors to the Templars). While not officially a member of the brotherhood, Eivor works with Hidden Ones like Basim and Hytham to eliminate Order members throughout England.