Before she was the witch queen of Felport, Marla Mason was just a freelance mercenary sorcerer with a knack for doing nasty jobs exceedingly well. This gritty novelette pits Marla and her magical cloak against a supernaturally-powerful serial killer targeting the city's magical elite, in an early tale featuring the heroine of the novel series that began with Blood Engines and continued with Poison Sleep, Dead Reign, Spell Games, Broken Mirrors, and Bone Shop.
This also includes an afterword by the author about the evolution of the series and the character.