The body of a young man fished out of the Thames is of little interest to Londoners caught up in the excitement of Queen Victoria's Diamond Jubilee celebrations. Yet to Inspector Sam Blackstone, the case is as puzzling as any he has ever come across. Why should a corpse dressed the in rags of a commoner have the face of a gentleman? And if this man does belong to noble stock, why has no one come forward to claim the body? As...