Are you a massive Halo fan? Have you been waiting for a sequel to Ghosts of Onyx since 2006? If so, today's your lucky day! Glasslands, the Onyx sequel and first book in a trio from Gears of War author Karen Traviss, is available today! The book takes place in the post-Covenant world and deals with the events of Onyx as well as events leading up to Halo 4.