Detlef Sierck, the self-proclaimed greatest playwright in the world, has declared that his next production will be a recreation of the end of the Great Enchanter, Constant Drachenfels - to be staged at the very site of his death, the fortress of Drachenfels itself. But the castle's dark walls still hide a terrible and deadly secret which may make the first night of Detlef's masterpiece the last of his life.