The Radleys. Matt Haig. 2010.

The Radleys are an averagely dysfunctional modern family living in a quiet English town. Peter is an overworked doctor, and Helen a forlorn housewife. Rowan, their teenage son, is being bullied at school, and their anemic daughter, Clara, has recently become a vegan. They are average, that is, save for one devastating exception: Peter and Helen are vampires and-for seventeen years-have been voluntarily abstaining from a life of chasing blood in the hope that their children might lead a normal existence. But one night, when Clara is driven to commit a shocking-and disturbingly satisfying—act of violence, her parents are forced to explain their lies.

Moving and thrilling, The Radleys explores the lengths to which a parent will go to protect a child, the costs of denying your true identity, the undeniable appeal of sin, and the everlasting, iridescent bonds of family love.