The New York Times bestseller—area of the expanded universe predicated on the award-winning gaming series Halo!

The twenty-sixth century. Once considered clandestine, the Spartan-II plan has now gone public. Stories of armored super-soldiers fending off thousands of Covenant attacks have become the stuff of star. While the Grasp Chief defends a besieged Globe, and the myriad factions from the Covenant continue their crusade to get rid of mankind, an ultra-secret cell of the Office of Naval Cleverness known as “Section Three” devises a plan to get the UNSC vital time. It will need hundreds of prepared soldiers, though—and yet another Spartan—to get the job done.

The earth Onyx is virtually abandoned and an ideal place to set this new strategy in motion. However when the Get good at Key destroys Halo, something is induced deep within Onyx: Old Forerunner technology stirs, and fleets of UNSC and Covenant vessels race to state it and alter the span of the Human-Covenant Battle. But this reawakened and ancient force may possess programs of its very own…