Nia has met the man she wants to marry. Marcus is kind, clever and handsome, with a beard so dark it is nearly blue-black. Nia demands a single promise from him - that Marcus will never enter her study, her private space. But when Marcus's curiosity begins to mount Nia feels more and more uneasy. Will he betray her? Can he accept that no means no? Can a woman ever have a room of her own? Malorie Blackman brings her unparalleled understanding of human nature to the story of Bluebeard.