When her cousin Emily is suspected of murder after a body drained of blood turns up at her London doorstep, Krewe of Hunters agent Cheyenne Donegal and her partner Andre Rousseau fly over unofficially to help. More exsanguinated victims turn up near Highgate Cemetery, feeding rumors of a Vampire of Highgate, and the pair must find the real killer before Halloween, and before Emily takes the fall.
Summary by Loreful, from public sources