A sinister, funny, moving tale of demonic possession, murder and religious fanaticism * Sunday Telegraph * Barmy and scary and predating Jekyll and Hyde. And written by a shepherd who barely read any books. A Scottish classic, a world classic, yet hardly anyone, writers excepted, has actually read it -- Ian Rankin * Observer * A strange and disturbing novel written by a self-educated Highland shepherd. A gripping and pioneering work that deals with the nature of good, evil and religious fanaticism * Daily Express * That peerless drama of divided selves and doppelgangers -- Maggie OFarrell * Observer * One of the great English gothic novels. Some would say, simply, that it is one of the great novels * Daily Mail * An extraordinary, irreducible fantasy * Observer *