Found in Chicago hunting members of the family, the Reaper/Angel duo took advantage of Tane’s supernatural weakness to approach him with a proposal. Shortly after which he revealed he’d learned the location of Mason and helped the Reaper rescue her old hunter friend.
While every other member of the group is a progeny among their own kind, Tane is one of the youngest Fenrir in the world. His already formidable power speaks volumes to the capabilities of his heritage and he’s demonstrated an advanced knowledge of his own innate magical abilities, able to help Melissa with her hunger.
As part of joining the group, Tane agreed to sire Mason so that he could stand with the Reaper and face the second coming of Lillith with his friend.