The North East Atlantic Pack are a group of werewolves who are descendants of Ansel. This pack comes from the North Atlantic and has had a bad relationship/rivalry with the Crescent Wolf Pack, since the beginning of time.
According to the legends of the pack, one of their Alphas had fathered a child to a very powerful witch around a thousand years ago. This child, a son, was later transformed into something they had never before seen, something both werewolf and vampire. The legend tells the story of Esther's affair with the Alpha, Ansel. When Mikael found out that Klaus wasn't his son, and that Klaus' biological father was the leader of the same pack whose member accidentally killed his youngest son Henrik on a full moon, he was so enraged that he killed Klaus' biological father and slaughtered most of their village's werewolf population
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