The Duality of Man and The Two Faces of Edward Mordake

Craniopagus Parasiticus – it sounds like a Harry Potter spell and if it were, it would be one of the more insidious. Those afflicted with it are born with a parasitic twin head. I’ll repeat that in case you have one of your own. Parasitic. Twin. Head. And not in the fashionable mode of Zaphod…