Awarding-winning and New York Times bestselling author of H Is for Hawk Helen Macdonald and debut novelist Sin Blaché deliver a tantalizing fusion of sci-fi, noir, action, and romance set in a universe just one perilous step from our own. Meet Adam, a seemingly unflappable American Intelligence officer and Rao, an ex-Mi6 agent, addict, and rudderless pleasure hound with the uncanny ability to discern the truth of things. When a mysterious new substance called Prophet is found to be the cause of a mysterious death and the materialization of increasingly bizarre objects, Adam and Rao are called to investigate.