The breathtaking conclusion to the thrilling BOOK OF THE STARS trilogy! Robin has been taken prisoner by the evil, faceless Shadow. Locked in a tower high above the dark city of Yenibohor, he must endure The Shadow's increasingly brutal attacks. When Robin's best friends discover his disappearance, they sneak through the Door to the Uncertain World to save him. Can Robin and his friends take on the most evil power in the multiverse before time runs out?