When Hilda, a beautiful young member of England's cynical postwar generation, meets Michael, a hapless mutant capable of perceiving the molecular composition of objects and the ever-shifting patterns of electromagnetic fields, she becomes his apostle. However, her efforts to convince others of the prodigy's unique importance end disastrously; and Michael himself is slowly destroyed - mentally and physically - by his uncanny gift. In the end, Hilda must decide whether she is willing and able to make a supreme sacrifice for the sake of humankind's future. This early and brilliant effort to export the topic of extra-sensory perception out of folklore and occult romances and import it into science fiction was first published in 1927 by Leonard and Virginia Woolf's Hogarth Press.