Fury's Magic (Fury Unbound Book 2);

"My name is Kaeleen Donovan. I'm a Theosian-a minor goddess. They call me Fury."

By day, I run the Crossroads Cleaning Company, and I also read fortunes and cast hexes at Dream Wardens, a magical consulting shop. But by night, I'm oath-bound to Hecate, Goddess of the Crossroads. Hecate charged me from birth with the task of hunting down Abominations who come in off the World Tree and sending them back to Pandoriam.

On a routine cleaning job in Portside—a boat full of ghosts need their joyride cut short—Tam and I run afoul of the Devani. The ruthless soldiers of Elysium capture him and send him out to the Tremble, a place of wild, chaotic madness. Jason and I devise a plan to sneak in and help Tam escape. But Lyon and the Order of the Black Mist reappear, and I’m on their hit list. Lyon opens a door to the realm of Tartarus and the walking dead are pouring into the city. Now, we must wade through both the Devani the dead to save Tam. And we must close the portal on the World Tree before Lyon manages to wake the Elder Gods of Chaos.