A riveting new space thriller sequel to the "New York Times"-bestseller "Halo: Glasslands" based on the enormously popular game.

The second novel of the Kilo-Five Trilogy by #1 New York Times bestselling author Karen Traviss—part of the expanded universe based on the award-winning video game series Halo! 2553. Welcome to humanity’s new war: silent, high stakes, and unseen. This is a life-or-death mission for the Office of Naval Intelligence’s black-ops team, Kilo-Five, which is tasked with preventing the ruthless Sangheili, once the military leaders of the alien alliance known as the Covenant, from regrouping and threatening humankind again. What began as a routine dirty-tricks operation—keeping the Sangheili occupied with their own insurrection—turns into a desperate bid to extract one member of Kilo-Five from the seething heart of a brutal civil war. But troubles never come singly for Kilo-Five. Colonial terrorism is once again surfacing on one of the human worlds that survived the war against the Covenant, and the man behind it is much more than just a name to Spartan Naomi-010. Meanwhile, the treasure trove of Forerunner technology recovered from the Forerunner shield world of Onyx is being put to work, even as a kidnapped Sangheili plots vengeance on the humans he fears will bring his people to the brink of destruction…

The final novel of the Kilo-Five Trilogy by #1 New York Times bestselling author Karen Traviss—part of the expanded universe based on the award-winning video game series Halo! 2553. With the thirty-year-long Covenant War finally over, the Office of Naval Intelligence faces old grievances rising again to threaten Earth. Angry and bitter colonists—still wanting to settle scores from an insurrection put on hold for three decades—crave justice…as does a man whose life was torn apart by ONI when his young daughter was abducted for the SPARTAN-II program. Black-ops squad Kilo-Five now find its collective loyalty tested beyond the breaking point when the father of their Spartan comrade, still searching for the truth about her disappearance, prepares to glass Earth’s cities to get an answer. How far will Kilo-Five go to stop him? And will he be able to live with the truth when he finds it? The painful answer lies with someone long dead, and a conscience that still survives in the most unlikely, undiscovered place…

The second installment in a new Halo trilogy and the riveting sequel to the "New York Times" bestseller "Halo: Glasslands, " based on the enormously popular game.

The Covenant has collapsed after a long, brutal war that saw billions slaughtered on Earth and her colonies. For the first time in decades, however, peace finally seems possible. But though the fighting's stopped, the war is far from over: it's just gone underground. The UNSC's feared and secretive Office of Naval Intelligence recruits Kilo-Five, a team of ODSTs, a Spartan, and a diabolical AI to accelerate the Sangheili insurrection. Meanwhile, the Arbiter, the defector turned leader of a broken Covenant, struggles to stave off civil war among his divided people. Across the galaxy, a woman thought to have died on Reach is actually very much alive. Chief scientist Dr. Catherine Halsey broke every law in the book to create the Spartans, and now she's broken some more to save them. Marooned with Chief Mendez and a Spartan team in a Forerunner slipspace bubble hidden in the destroyed planet Onyx, she finds that the shield world has been guarding an ancient secret – a treasure trove of Forerunner technology that will change everything for the UNSC and mankind. As Kilo-Five joins the hunt for Halsey, humanity’s violent past begins to catch up with all of them as disgruntled colony Venezia has been biding its time to strike at Earth, and its most dangerous terrorist has an old, painful link with both Halsey and Kilo-Five that will test everyone’s loyalty to the limit.

The bestselling adaptation of the iconic video game Halo: Combat Evolved featuring the Master Chief—part of the expanded universe based on the award-winning video game series! 2552. Having barely escaped the final battle for Reach against the vast alien alliance known as the Covenant, the crew of the Pillar of Autumn, including Spartan John-117—the Master Chief—and his AI companion Cortana, is forced to make a desperate escape into slipspace. But their destination brings them to an ancient mystery and an even greater struggle. In this far-flung corner of the universe floats a magnificently massive, artificial ringworld. The crew’s only hope of survival is to crash-land on its surface and take the battle opposing the Covenant to the ground. But they soon discover that this enigmatic ringworld is much more than it seems. Built one hundred thousand years ago by a long-lost civilization known as the Forerunners, this “Halo” is worshipped by the Covenant—a sacred artifact they hope will complete their religious quest for supposed transcendence, and they will stop at nothing to control it. Engaging in fierce combat, Master Chief and Cortana will go deep into the Halo construct and uncover its dark secret and true purpose—even as a monstrous and far more vicious enemy than the Covenant emerges to threaten all sentient life on Halo and the galaxy beyond…

An original novel set in the Halo universe—based on the New York Times bestselling video game series! 2559. Formerly one of the Covenant’s greatest and most fearsome warriors, Arbiter Thel ‘Vadam is now allied with his former human enemies while deeply entrenched in leading the Sangheili people to a new era of unification. But his aspirations are under constant threat, whether by the dangerous, warring factions of rival Sangheili keeps, or the relentless shadow of oppression spread by the renegade artificial intelligence Cortana​​. An opportunity to break Cortana’s chains has suddenly presented itself through the rumored existence of an ancient artifact located on the hostile world of Netherop. Spartan Olympia Vale, trained with the skills to live and thrive among the Sangheili, also recognizes this alien prize as an essential means to aid humanity in reaching the same goal of freedom. But behind the scenes, both ‘Vadam and Vale are being manipulated by a mysterious figure with their own agenda. And to make matters worse, all involved are unknowingly placing themselves at perilous odds with forces beyond their comprehension…