Nikolai by Michele Notaro

For centuries, I’ve gone through life floating from one lover to the next, never tying myself down to anyone. But then Grayson walks into my life, and I can’t imagine spending it without him. Messing with the Warriors of Tempest isn’t my greatest move, but to ensure he can stay with me, I’ll do what I have to.
When Delaro seeks me out, the little witch makes my heart soar in new and unimaginable ways. Unfortunately, Delaro is an Ellwood, and his coven leader thinks I’m out to get him. Gray and I have to jump through hoops to even speak with Delaro, but we’ll do whatever we can because we both feel a pull to the man that’s turned our lives upside-down.
A shadowy figure starts terrorizing the land and threatens to destroy everything we’ve built and everyone I love. The three of us need to work together in order to conquer the new evil afloat in Brinnswick, but nothing is easy when something lurks in the shadows and around every corner.