Halo: Glasslands is the first novel in the Kilo-Five trilogy, a multi-book deal between Tor Books and bestselling writer Karen Traviss, taking place within the Halo universe. It was released on October 25, 2011. Traviss has clarified the term "sequel" in regards to the statement by saying: "It isn't a sequel to Ghosts of Onyx in the sense that you mean a sequel, i.e. a continuation of the same story with the same cast -- these novels are set just after it and follow the events of Halo 3. There'll be new characters and new storylines."