Mead's central charctor, John Spector, is the magician who helps the police unravel, this fiendishly difficult murder. As a conjuror he is perfectly placed to understand the art of illusion and distraction, and fits wonderfully well into the narrative. However, we learn little about who Spector is, and how he has come to be assisting the police, leading his presence to be essentailly the third mystery of the book.