A striking debut from one of Britain's promising new writers, 'The Separate Principle' is a chilling portrait of the poisonous power of secrets. Set in a tuberculosis hospital on the Isle of Wight just before the beginning of the second world war, the book unpacks concepts of illness and health to expose the sickness lurking at the heart of its characters' relationships. Caught in the middle of its web is the compelling Lillian, a dissatisfied housewife forced to play the game of respectability at a time when women's scope for rebellion was small. The historical details are flawlessly observed and yet managed in such a way that the reader is never distracted by them. Instead they work, along with the setting, to draw you into the book's world so that you are swept along by the story and always impatient for the next twist (of which they are many). A cracking winter read.