Its skull is in the possession of the Royal College of Surgeons in London.
The following well-known story of Edward Mordake, though taken from lay sources, is of sufficient notoriety and interest to be mentioned here:-- "One of the weirdest as well as most melancholy stories of human deformity is that of Edward Mordake, said to have been heir to one of the noblest peerages in England.

He never claimed the title, however, and committed suicide in his twenty-third year.

He lived in complete seclusion, refusing the visits even of the members of his own family.
He was a young man of fine attainments, a profound scholar, and a musician of rare ability.

His figure was remarkable for its grace, and his face--that is to say, his natural face--was that of an Antinous.
But upon the back of his head was another face, that of a beautiful girl, 'lovely as a dream, hideous as a devil.' The female face was a mere mask, 'occupying only a small portion of the posterior part of the skull, yet exhibiting every sign of intelligence, of a malignant sort, however.' It would be seen to smile and sneer while Mordake was weeping.

The eyes would follow the movements of the spectator, and the lips would 'gibber without ceasing.' No voice was audible, but Mordake avers that he was kept from his rest at night by the hateful whispers of his 'devil twin,' as he called it, 'which never sleeps, but talks to me forever of such things as they only speak of in hell.