An original full-length novel set in the Halo universe and based on the New York Times bestselling video game series! Just hours following their climactic battle on the Forerunner planet Genesis, the Spartans of Blue Team and Fireteam Osiris find themselves running for their lives from the malevolent machinations of the now-renegade artificial intelligence Cortana. But even as they attempt to stay one step ahead, trouble seems to find Spartan Edward Buck no matter where he turns. A secret mission enacted by the Office of Naval Intelligence could possibly help turn the tide, and has Buck reluctantly agreeing to reform his old team, Alpha-Nine. Because if the band is really getting back together for this one, that means everybody—including the Spartan who Buck never wants to see again, the one who committed the ultimate betrayal of trust…

An original full-length novel set in the Halo universe and based on the New York Times bestselling video game series!Just hours following their climactic battle on the Forerunner planet Genesis, the Spartans of Blue Team and Fireteam Osiris find themselves running for their lives from the malevolent machinations of the now-renegade artificial intelligence Cortana. But even as they attempt to stay one step ahead, trouble seems to find Spartan Edward Buck no matter where he turns.A secret mission enacted by the Office of Naval Intelligence could possibly help turn the tide, and has Buck reluctantly agreeing to reform his old team, Alpha-Nine. Because if the band is really getting back together for this one, that means everybody—including the Spartan who Buck never wants to see again, the one who committed the ultimate betrayal of trust...

The New York Times bestselling series based on the blockbuster Xbox® games continues with the acclaimed story (originally published as a digital-first edition) of Spartan Edward Buck—first seen in HALO: ODST and reappearing in 2015’s HALO 5: GUARDIANS! While Spartans get all the glory, no soldier―not even the legendary Master Chief―wins a war on his own. Gunnery Sergeant Edward Buck and his team of Orbital Drop Shock Troopers (ODSTs) played a major role in saving Earth from all-out invasion at the end of the Covenant War―acts of bravery and ingenuity that did not go unnoticed by the United Nations Space Command. Now, after many Spartans have been killed in battle and the Master Chief is listed as MIA, the UNSC decides to create a new generation of Spartans to defend humanity from threats both outside―and within. When they come to Buck with an extraordinary proposition, he is forced to make a life-altering decision. With the Covenant War finally over, is it time for him to retire to the sidelines for a life he could only dream about…or is he prepared to step up and become part of the military’s new blood? Copyright © 2015 by Microsoft Corporation. All Rights Reserved. Microsoft, Halo, the Halo logo, Xbox, and the Xbox logo are trademarks of the Microsoft group of companies.

An original novel set in the Halo Universe and based on the New York Times bestselling video game series! It is 2553, and the three-decade long Covenant War that defined a generation has suddenly drawn to a close. Yet, in the remotest parts of human space, tensions remain that threaten to overflow into another full-scale conflict. Beneath the surface of the planet Gao lies a vast cavern system renowned for its therapeutic effects and rumored miraculous cures. But now Gao natives are turning up brutally murdered down there—violent acts that happen to coincide with the recent arrival of a UNSC research battalion protected by Spartan Blue Team, led by the renowned Spartan-II Fred-104. Maverick detective Veta Lopis of the Gao Ministry of Protection is only trying to do her job as the Special Inspector assigned to catch a serial killer—one who is possibly hiding within the Spartan ranks—but she never anticipates the situation spiraling out of control into an all-out crisis. When Gao is revealed to harbor ancient Forerunner technology that could solidify the UNSC’s military supremacy for centuries to come, Insurrection loyalists within the planetary government will do anything—even align with a vicious faction of what remains of the Covenant—to ensure that never happens…

An original full-length novel set in the Halo universe and based on the New York Times bestselling video game series! Find. Claim. Profit. In a post-Covenant War galaxy littered with scrap, it’s the salvager’s motto—and Rion Forge certainly made her mark on the trade. All she wanted was to grow her business and continue the search for her long-lost father, but her recent discovery of a Forerunner debris field at the edge of human-occupied space has now put her squarely in the crosshairs of the Office of Naval Intelligence and the violent remains of the Covenant. Each faction has a desire to lay claim to the spoils of ancient technology, whatever the cost, sending Rion and the crew of the Ace of Spades on a perilous venture—one that unexpectedly leads them straight into danger far greater than anything they’ve ever encountered…

An original full-length novel set in the Halo universe and based on the New York Times bestselling video game series! August 2558. Rion Forge was once defined by her relentless quest for hope amidst the refuse and wreckage of a post-Covenant War galaxy—years spent searching for family as much as fortune. But that was before Rion and the crew of her salvager ship Ace of Spades encountered a powerful yet tragic being who forever altered their lives. This remnant from eons past, when the Forerunners once thrived, brought with it a revelation of ancient machinations and a shocking, brutal history. Unfortunately, the Ace crew also made dire enemies of the Office of Naval Intelligence in the process, with the constant threat of capture and incarceration a very real possibility. Now with tensions mounting and ONI forces closing in, Rion and her companions commit to this being’s very personal mission, unlocking untold secrets and even deadlier threats that have been hidden away for centuries from an unsuspecting universe....

A Master Chief story and original full-length novel set in the Halo universe—based on the New York Times bestselling video game series! 2526. It has been a year since humanity engaged in its destructive first contact with a theocratic military alliance of alien races known as the Covenant. Now the hostilities have led to open war, and the United Nations Space Command understands virtually nothing about its new enemy. There are only two certainties—the Covenant is determined to eradicate humanity, and they have the superior technology to do just that. The UNSC’s only hope lies with the Spartans: enhanced supersoldiers raised and trained from childhood via a clandestine black ops project to be living weapons. Their designated commander, Petty Officer John-117, has been assigned to lead the Spartans on a desperate counterattack designed to rock the Covenant back on its heels, and to buy humanity the time it needs to gather intelligence and prepare its defenses. But not everyone wants the Spartans to succeed. A coalition of human insurrectionist leaders believes an alliance with the Covenant to be its best hope of finally winning independence from the Unified Earth Government. To further their plans, the insurrectionists have dispatched a sleeper agent to sabotage the UNSC counterattack—and ensure that John-117 and the Spartans never return from battle....