Worn out after her first three terms at the Nocturnal Academy, Alice Dibble finds she needs help to sleep and concentrate. At a low ebb, she accidentally allows some Immaterial imps to influence her thought patterns, and uses her superior mental powers to push her unhealthy father into exercising. When he collapses from a heart-attack, Alice is immediately overcome with guilt. At the same time, Alice and her vampire friend Milly become...