Mate & Kingdom by Amber Ella Monroe

My name is Elisa Caedmon. A witch and a guardian of my kind. Many know me as the mate and soon-to-be wife of the infamous wolf shifter Tristan Arnou. Our union is inevitable and just might be the only thing that will mend what’s broken.
Despite all that’s been uncovered while pursuing peace, another threat has emerged. I could take a domestic approach and leave the chaos to two of the most strongest Alphas that have ever existed…or I could accept my true nature and guard my kind by any means necessary.
Tristan has other ideas. He thinks this can only end one way—his way. But some threats are more sinister than others. Like family ties, some threats are immeasurable.
This new evil was created with magic—it must be destroyed with magic. Using my gifts to disrupt the balance could cause devastating consequences, but what’s a witch to do when the enemy’s next target is closer to home than she realizes? She joins the hunt.