Someone is writing a forbidden spell onto his own skin. Across London, occult tattooists and piercers are disappearing. Hidden streets are bleeding into the ordinary city. The ancient veil that has concealed the supernatural for centuries is starting to fail. And whoever is behind it is only just getting started. Vampire inquisitor Albrecht Voss and disgraced witch Eleanor Hexwood have been forbidden to work together — punished for crossing one boundary too many and exiled to opposite corners of Other London. This time, their masters intend to keep them apart for good. Then a tattooist and his wife are found murdered in Camden, their bodies pierced by hundreds of monstrous quills. DS Naomi Toussaint sees the crime scene. More dangerously, she remembers it. As the killings mount and the veil tears wider, Voss and Hexwood have one choice defy the order that separates them, or watch the hidden world they have fought to protect be dragged screaming into the light. They've broken the rules to save Other London before. This time, there may be no Other London left to save.