Cley was once the greatest practitioner of the Physiognomy, a dangerous pseudoscience invented by the twisted tyrant Drachton Below. Since the fall of Below's Well-Built City, Cley has dedicated himself to healing. But when his new people fall into a deadly sleep from which he cannot wake them, he ventures to the ruins of the Well-Built City for the cure. He discovers Below is still alive--but the antidote is lost and Below is asleep, victim to the disease he created. Cley must strike a pact with Below's demon to enter Below's mind in search of the antidote's formula. But even if he survives the demon, Cley may not survive the very real dangers of Below's vast, intricate, and treacherous memory palace--or the disintegration of the dying madman's mind. --Cynthia Ward