Magic on the Hunt (Allie Beckstrom Series #6)

In the secret lockup of the Authority, the council that decides what can and can't be done with magic, an undead magic user has possessed one of the prisoners. He wants his freedom-and then some. Now Allie Beckstrom and her lover, Zayvion, are the first line of defense against the chaos he's about to unleash on the city of Portland...