The List of 7

The List of Seven is a 1993 novel by Mark Frost. Though initially an occult murder mystery, the story brings in conspiracy theory, vendetta, horror, history, and Theosophy. The main character, Sir Arthur Conan Doyle, is a real historical person and several other historical figures appear in the story. Mark Frost followed the book with a sequel in 1995, The Six Messiahs.