A novella-sized prequel for an upcoming Vampire Hunter series called Lost Infernal.
Lieutenant Wolf doesn't let emotion get in the way of performing her duty. Putting the Alley first has kept her safe and free. Yet, when she's asked to kill an ally of the man who sacrificed himself to save her life, the mission weighs heavily on her.
Curious about why all the Alley's information on the target came from the same source, she arranges to meet with their informant. What she learns is that he has engineered the whole thing, including her involvement. He offers her an alliance with an unknown Paragon and power enough that she will never have to watch someone else die for her. The price of his tempting offer however, is that she must kill a friend of the man she loved.