The bestselling series of HALO novels continues in this new space thriller based on the enormously popular game. Though a fragile peace has been established between Earth and the peoples of the Covenant, forces on both sides make that peace precarious. A schism among the Sangheili is gaining strength, with a splinter group trying to unseat the leader who agreed to peace; and while some Human colonies rebel against Earth authority, the official policy of ONI changes as the volatile situation in space shifts with new developments. Having discovered a trove of Forerunner technology on Onyx, Earth now seeks to find uses for it in the conflict. For the fight is far from over...