Fallen

He fell because he loved mankind. It cost him his soul. Now Cooper seeks his halo, his only to chance to regain what he lost. But wherever the Fallen walk, a Sinistari demon is not far behind; their only task is to slay the earthbound angels. Pyxion stalks Cooper. When she kills an angel, she can claim her own soul. His death will be her chance at redemption. Yet Cooper's first encounter with the Sinistari leaves him hungering for more. And Pyx finds herself drawn desperately, sensually towards Cooper. With a vampire trailing both of them, relying on each other could be their best hope of survival - but they cannot give in to their lust or they'll both be doomed.