Rook Myfanwy Thomas is trying to prevent all out supernatural war with the oldest enemy of the Checquy, but someone keeps trying to assassinate her.

THE CHECQUY: A centuries-old covert organization that protects the nation from supernatural threat. THE GRAFTERS: A centuries-old supernatural threat. After centuries of rivalry and bloodshed, two secret and otherworldly organisations – The Checquy and The Grafters – are on the verge of joining forces, and only one person has the supernatural skills – and the bureaucratic finesse – to get the job done: Myfanwy Thomas. But as a wave of gruesome atrocities sweep London, ingrained paranoias flare, old hatreds ignite and negotiations grind to a halt. It is up to Myfanwy to find the culprits before they trigger a devastating, all-out, supernatural war between the reluctant allies.