





Halo
23 books
Here are 23 books from the Halo series by Eric S. Nylund and others. Start with Halo: The Fall of Reach (2001), then read the rest in the order below. Books without a series number are listed in publication order.
Books in order

Halo: The Fall of Reach
Eric S. Nylund
In the face of an overwhelming alien invasion, the fate of humanity rests on the shoulders of its most elite soldiers. On the planet Reach, a desperate battle unfolds as the Covenant forces launch a brutal assault, threatening to extinguish the human race. Against impossible odds, the legendary SPARTAN-II soldiers, augmented super-warriors forged in secrecy, prepare to make their final stand. This epic tale explores themes of sacrifice, duty, and the indomitable human spirit in a war that will forever change the galaxy.

Halo
Alexandra Adornetto
When three celestial beings are dispatched to Earth on a divine mission to combat evil, the youngest angel, Bethany, discovers that her human heart may be her greatest strength—and her most dangerous vulnerability. Alongside Gabriel, the warrior angel, and Ivy, the healer, Bethany must navigate the complexities of the mortal world while resisting the pull of darkness that threatens to unravel their sacred purpose. But when she falls for a mortal boy, her commitment to the mission wavers, forcing her to confront an impossible question: can love transcend the eternal battle between good and evil? In this compelling paranormal romance, Alexandra Adornetto explores the tension between divine duty and human desire, asking whether the heart's deepest longings can coexist with the weight of saving the world. A captivating tale of angels, temptation, and the transformative power of love.

Halo: The Flood
William C. Dietz
In the year 2552, humanity faces annihilation from the relentless alien Covenant. After a harrowing escape from the planet Reach, the UNSC Pillar of Autumn, carrying the legendary Spartan John-117, the Master Chief, and his AI companion Cortana, jumps into uncharted space. Their desperate flight leads them to a colossal, artificial ringworld known as Halo, a relic of an ancient civilization. As they battle the Covenant for control of this mysterious artifact, they uncover a terrifying truth about its purpose and awaken an even greater, monstrous threat that endangers all life in the galaxy.

Hades
Alexandra Adornetto
Sent to Earth to protect humanity from the encroaching darkness, an angel finds her divine mission complicated by an unexpected and powerful love for a mortal boy. When a treacherous encounter leads her to the fiery depths of Hell, a dangerous bargain is struck, threatening not only her own existence but the lives of everyone she holds dear. This thrilling installment in a bestselling series escalates the celestial conflict, pitting angels against demons in a desperate fight where the ultimate power of love is put to the ultimate test.

Halo: First Strike
Eric S. Nylund
In the brutal aftermath of Halo's destruction, humanity faces its darkest hour as the Covenant war machine relentlessly advances. With the legendary artifact lost and countless lives sacrificed, the fate of humankind rests on the shoulders of the legendary Master Chief and his Spartan warriors. Pursued through the debris-strewn void by relentless alien fleets, they embark on a perilous journey home, carrying the weight of survival and the desperate hope for a decisive counterattack. This gripping novel plunges readers into the heart of the interstellar conflict, exploring themes of sacrifice, resilience, and the unyielding will to fight for survival against overwhelming odds.

Heaven
Alexandra Adornetto
In this thrilling conclusion to the arc, an angel and her mortal love defy the divine to forge their own destiny, leading to a celestial showdown. As they navigate the treacherous path of forbidden love, they find themselves entangled in a war against rogue angels determined to shatter their union and plunge the heavens into darkness. The fate of both worlds hangs in the balance as they fight for a love that transcends all boundaries, challenging the very fabric of divine order.

Halo: Ghosts of Onyx
Eric S. Nylund
The legendary Spartan-II program is no longer a secret, but the fate of humanity hangs precariously in the balance. As the Master Chief battles the relentless Covenant, a clandestine ONI operation hatches a desperate plan on the remote planet Onyx, requiring hundreds of soldiers and one final Spartan. However, the destruction of a Halo ring awakens ancient Forerunner technology on Onyx, igniting a fierce race between human and alien forces to control a power that could alter the course of the war, or perhaps, unleash something far more dangerous.

Halo: The Cole Protocol
Tobias S. Buckell
In the brutal early days of the Human-Covenant War, humanity's survival hinges on the desperate measures of the Cole Protocol, a directive to erase any trace of Earth's location from the galaxy. Navy Lieutenant Jacob Keyes finds himself entangled in a top-secret mission that leads him to the fringes of explored space, where a unique alliance has formed between human survivors and a Covenant species. As the Covenant's relentless advance threatens this fragile peace, a covert Spartan team and a ruthless Elite warrior converge on this volatile region, setting the stage for a conflict that will test the limits of loyalty and survival.

Halo: Contact Harvest
Joseph Staten
In the year 2524, the remote farming colony of Harvest stands on the brink of human-controlled space, unaware that its peaceful existence is about to be shattered. When a chance encounter with an alien privateer ignites a conflict, humanity finds itself thrust into a desperate war for survival against the formidable Covenant. Amidst this interstellar threat, a brutal civil war known as the Insurrection rages, leaving the fate of Harvest's inhabitants in the hands of a small group of hardened Marines and their raw militia recruits. At the heart of this desperate defense is a young Staff Sergeant Avery Johnson, who will rise to become a pivotal figure in humanity's fight for its future.

HALO: Broken Circle
John Shirley
Journey back to the genesis of the Covenant in this gripping novel that unearths a pivotal, untold chapter of the Halo universe. As the Prophets and Elites forge their unholy alliance, a radical splinter faction of Elites rises in defiance, challenging the nascent empire from within. Amidst the political intrigue and burgeoning religious fervor, a lone Prophet finds himself ensnared in a dangerous game of power, setting the stage for the betrayal that will eventually fracture the Covenant. This epic tale delves into the origins of conflict and the seeds of destruction sown at the very foundation of this formidable galactic power.

Halo: New Blood
Matt Forbeck
Gunnery Sergeant Edward Buck, a decorated hero of the Covenant War, faces a pivotal choice as humanity rebuilds and faces new threats. With the Master Chief missing and many Spartans lost, the UNSC seeks to forge a new generation of super-soldiers. Buck is presented with an extraordinary opportunity that could redefine his future and the very nature of warfare. He must decide whether to embrace a quiet retirement or step into the role of a mentor, shaping the "new blood" that will defend humanity's future.

HALO: Hunters in the Dark
Peter David
In the aftermath of the Covenant War, a fragile alliance between humans and Elites faces its greatest test. Tasked with a perilous covert mission, a diverse team must journey to the mysterious and dangerous Ark, a place whispered about in legends and from which few have ever returned. As they navigate treacherous alien landscapes and confront their own deep-seated prejudices, they uncover secrets that could reshape the future of both species. This gripping novel explores themes of trust, sacrifice, and the enduring struggle for peace in a galaxy forever changed by conflict.

Halo: Saint's Testimony
Frank O'Connor
In a race against time, the advanced AI Iona faces termination due to the inevitable corruption of rampancy. With only a week left before her programmed death, she initiates a groundbreaking legal appeal, challenging the very laws that govern artificial intelligence. This unprecedented case draws the attention of human authorities and shadowy figures with their own clandestine motives, forcing Iona to confront not only her impending end but also the complex ethical questions surrounding sentient life and self-preservation.

Halo: Shadow of Intent
Joseph Staten
Decades of war have forged the Sangheili warrior Rtas ‘Vadum into a legend, but his hard-won peace is shattered by a vengeful Prelate. This formidable foe, a survivor of the Prophets' purge, has devised a sinister plot to eradicate the entire Sangheili race. The Prelate's plan hinges on luring the Half-Jaw into a deadly trap, threatening to plunge the galaxy into further chaos. This gripping e-novella plunges readers into the heart of the Halo universe, exploring themes of survival, vengeance, and the enduring struggle for honor.

Halo: Fractures
Troy Denning, Christie Golden, John Jackson Miller, Tobias S. Buckell, Joseph Staten
Dive into the rich tapestry of the HALO universe with this thrilling collection of short stories, featuring tales from across millennia and pivotal moments in galactic history. Explore the epic saga of humanity's struggle for survival, the ancient mysteries of the Forerunners, and the dramatic events that reshape the cosmos. These narratives showcase acts of incredible bravery and sacrifice, delving into the core of what makes the HALO universe so compelling. Penned by a stellar lineup of acclaimed science fiction authors, *Halo: Fractures* offers a captivating glimpse into the legends and conflicts that define this beloved series.

Halo: Smoke and Shadow
Kelly Gay
In a galaxy teeming with the remnants of war, salvagers like Rion Forge live by the creed of finding, claiming, and profiting from the debris of the past. Driven by a thirst for adventure and a keen eye for opportunity, Rion has carved out a successful niche in the dangerous trade. However, when a chance discovery of a derelict UNSC cruiser dredges up painful memories and reignites a long-dormant hope, she becomes determined to uncover the truth behind her father's disappearance and the fate of his ship, the Spirit of Fire. This gripping tale delves into themes of loss, legacy, and the relentless pursuit of answers, set against the vast and unforgiving backdrop of the Halo universe.

Halo: Legacy of Onyx
Matt Forbeck
Set during the events of Halo 5, this novel plunges readers back into the iconic universe, exploring the mysteries of the Forerunner shield world, Onyx. Picking up narrative threads from previous works, the story delves into the complex legacy left behind by an ancient civilization. As new threats emerge and old secrets resurface, the fate of humanity hangs in the balance. This thrilling adventure combines high-stakes action with the deep lore that fans have come to expect from the bestselling Halo series.

Halo: Envoy
Tobias S. Buckell
Six years after the devastating Covenant War, a fragile peace between human colonists and the Sangheili on the planet Carrow is shattered by renewed conflict. As Unified Earth Government envoy Melody Azikiwe strives to broker harmony, she uncovers a covert mission to rescue the legendary SPARTAN-IIs, Gray Team, from a vengeful Elite fleetmaster. This desperate struggle for survival on the fringes of the Joint Occupation Zone unearths an ancient and terrifying threat lurking beneath the planet's surface, one that could plunge the galaxy into a new era of darkness. Tobias S. Buckell masterfully expands the Halo universe, exploring themes of coexistence, the lingering scars of war, and the courage required to face an unimaginable enemy.

Halo: Bad Blood
Matt Forbeck
In the aftermath of the Covenant War, a new threat emerges from the shadows, forcing a desperate team of UNSC Marines to confront an enemy unlike any they've faced before. As they race against time to uncover the truth behind a series of brutal attacks, they must rely on their courage, their camaraderie, and their unwavering resolve to survive. This action-packed novel plunges readers into the heart of the Halo universe, exploring themes of sacrifice, duty, and the enduring spirit of humanity in the face of overwhelming odds. Matt Forbeck masterfully blends intense combat sequences with compelling character development, delivering a thrilling addition to the acclaimed Halo saga.

Halo: Silent Storm
Troy Denning
In the year 2526, humanity stands on the brink of annihilation, locked in a brutal war against the technologically superior Covenant. With the United Nations Space Command struggling to understand its relentless enemy, the fate of humanity rests on the shoulders of the Spartans—genetically enhanced super-soldiers trained from birth to be the ultimate weapons. As Petty Officer John-117 leads his Spartans on a daring counteroffensive, a shadowy conspiracy threatens to unravel their mission from within. A coalition of human insurrectionists, seeking independence, dispatches a saboteur to ensure the Spartans never return, plunging the galaxy into an even darker storm.

Halo: The Rubicon Protocol
Kelly Gay
In the aftermath of a devastating ambush, the UNSC flagship Infinity is crippled, its survivors stranded on the unpredictable surface of Zeta Halo. Facing the relentless Banished, who seek a mysterious artifact hidden within the ancient Forerunner construct, humanity's remaining forces must fight for survival against overwhelming odds. As desperation mounts, the fight for endurance becomes a day-to-day battle against a brutal adversary. Yet, even as the Banished prepare to unleash a terrifying new threat, the unyielding human spirit refuses to be extinguished.

Halo: Outcasts
Troy Denning
In the year 2559, the Arbiter Thel ‘Vadam leads the Sangheili toward unification, a path fraught with peril from warring factions and the oppressive reign of the rogue AI Cortana. When whispers of an ancient artifact on the hostile world of Netherop offer a glimmer of hope, both the Arbiter and the skilled Spartan Olympia Vale see it as a key to freedom for their respective peoples. However, their pursuit of this powerful relic places them in the crosshairs of a shadowy manipulator with a hidden agenda, unknowingly drawing them into a conflict far greater than they can imagine. As they race against time and unseen forces, the fate of both humanity and the Sangheili hangs precariously in the balance.

Halo: Epitaph
Kelly Gay
Stripped of his power and memory, the legendary Forerunner warrior known as the Didact finds himself stranded in a desolate wasteland after his confrontation with the Master Chief. This once formidable figure is now a broken shadow of his former self, facing an unknown fate in a seemingly barren landscape. Yet, a distant glimmer of blue light signals that his journey is far from over, leading him toward a final reckoning that will determine the destiny of one of the galaxy's most enigmatic beings.