A Master Chief tale and original full-length novel set in the Halo universe—based on the New York Moments bestselling video game series!

2526. It’s been a yr since humanity engaged in its damaging first contact with a theocratic armed service alliance of alien races referred to as the Covenant. Today the hostilities possess led to open war, as well as the United Nations Space Order understands virtually nothing at all about its fresh enemy. There are just two certainties—the Covenant is determined to eliminate about Halo: Silent Storm: A Professional Chief Story mankind, and they possess the excellent technology to do that. The UNSC’s just hope lies with the Spartans: enhanced supersoldiers elevated and qualified from childhood with a clandestine black ops project to become living weapons. Their specified commander, Petty Official John-117, continues to be assigned to business lead the Spartans on the desperate counterattack made to rock and roll the Covenant back again on its pumps, and to buy humanity the time it needs to assemble cleverness and prepare its defenses.

But not everyone wants the Spartans to achieve success. A coalition of individual insurrectionist leaders is convinced an alliance with the Covenant to become its best wish of finally earning independence in the Unified Earth Authorities. To further their programs, the insurrectionists possess dispatched a sleeper agent to sabotage the UNSC counterattack—and make sure that John-117 as well as the Spartans never come back from battle….