Spirit Animals

On a chilly morning in February, DCI Claire Pierce is called off her latest investigation—an animal sacrifice case—to a graveyard in Nottinghamshire, where a murder scene looks set to re-open an old case.

Three times before, Yorkshire’s Ritual Crime Unit tried and failed to catch the “Valentine Vampire,” a ritualistic serial killer whose victims show up drained of blood. Fourteen years after the last deaths, it seemed the case would never be solved.

Now there’s another body, and if the killer...