Crossing Realms, Book Two: The Watcher, by Rebecca E. Neely

Hell bent on avenging his own death, former Keeper Dev Geary eagerly accepts when the Watchers task him with returning to the human realm to discover the secret for rendering Similitude—the very thing that killed him.

But to succeed in the seven days he’s been granted, he’ll need to work with the one human who wants nothing to do with him, and who he can’t help falling for—Meda Gabriel, a cagey, street smart bar owner with a unique skill set, and maybe, the key to his mission.

With the clock ticking and the Betrayers barely a step behind, can Dev overcome his demons and find the answers the clan so desperately needs, with Meda at his side? Can love find a way, or will he be forced to abandon her and the clan, leaving them all to face imminent destruction?