THE CHECQUY: A centuries-old covert organization that protects the nation from supernatural threat. THE GRAFTERS: The oldest of those threats. 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 (again). What is needed is a precise strike that eliminates the problem cleanly and completely. And so these two ancient enemies each select an agent and task them to work together in secret to destroy this cabal working towards war...