In this highly entertaining work, Jan Bondeson delves into the great unsolved cases of disputed identity. Did the son of Louis XVI and Marie Antoinette die in the Temple Tower or was he one of the fellows claiming to be the dauphin after the Terror? Was Kaspar Hauser really the missing crown prince of Baden? When an eccentric duke built a tunnel complex beneath his estate, who is to say he didn't have a second life as a shopkeeper in London?