Nalini Singh: Angels’ Blood: Book 1 [2010] paperback

Vampire hunter Elena Deveraux knows she’s the best – but she doesn’t know if she’s good enough for this job. Hired by the dangerously beautiful Archangel Raphael, a being so lethal that no mortal wants his attention, only one thing is clear – failure is not an option … even if the task she’s been set is impossible.

Because this time, it’s not a wayward vamp she has to track. It’s an archangel gone bad.

The job will put Elena in the midst of a killing spree like no other … and pull her to the razor’s edge of passion. Even if the hunt doesn’t destroy her, succumbing to Raphael’s seductive touch just may. Because when archangels play, mortals break …