Witch by Mell Eight

Kana spent his life hiding from those who might take advantage of his power. Now that he’s living with his lover, werewolf Alpha Ember, hiding is impossible. However, living in the open means accepting the inherent risks. Kana hopes he and Ember together are strong enough to survive whatever might come. Then a new witch moves to town.
Dealing with the witch should be the most important thing for Kana, the pack, and their allies, but something else is lurking in the shadows—something dark, and evil, whose only goal is to destroy everything Kana holds dear.