Congratulations to Patrick Carman on book five of The 39 Clues: The Black Circle, which hits bookstores today. The full cover has been a closely guarded secret for months, but it can now be revealed. Do you recognize the symbol above? You will once you read the book. For more information, check Scholastic's press release, which also shows the hot-off-the-presses Japanese cover for book one: The Maze of Bones.