Edinburgh November 1745 As the nights grow longer in the depths of a Scottish winter, Robert Young, Captain Travers, their families and friends, chase the darkness away as they gather to celebrate a joyful engagement. But grim news casts a pall over the happy atmosphere. A sobbing woman has carried the body of a child into the headquarters of Edinburgh's Town Guard. In her hand she still clutches a bloody dagger. What at first was thought to be no...