Deception: A Lost Infernal Prequel by Shonna White
Approx. 15,210 words.
Published on December 3, 2012.
Lieutenant Wolf doesn't let emotion get in the way of performing her duty. Yet when she's asked to kill an ally of a vampire who died to save her life, she can't help but feel torn. Estellia soon learns that this mission is far more than it seems, and it will test everything that keeps her from becoming like the monseters she hunts.