London, 1880. Eighteen-year-old Witch Hunter Luke Lexton has failed his initiation into the Malleus Maleficorum - the secretive brotherhood devoted to hunting witches. Instead of killing the witch he picked from the Book of Witches, he has committed the worst possible crime: he has fallen for her. Sixteen-year-old witch girl Rosa Greenwood has failed to secure her struggling family's future by marrying the handsome, cruel, rich and...