Book 4 of The Raven Cycle

Piper has awakened something evil in Cabeswater, and Adam can feel that Cabeswater is dying. Gansey, along with his friends, Ronan, Adam, Noah, Henry, and Blue must find the lost king, Glendower’s tomb, and awaken him to be granted a request.  As Blue finds herself drawn to Gansey, she is acutely aware of the prophecy that her kiss will cause his death.  Suspense builds as the Raven boys and the Henrietta psychics try to stop the evil unleashed by Piper and Laumonier.