Horus Heresy Series: Part 8 – The Siege Approaches

Part eight of the Horus Heresy series explores the depths of loyalty in a galaxy on the brink of collapse. From shattered legions fighting for vengeance to Primarchs grappling with the cost of their ideals, each story examines the personal stakes and sacrifices that define the final days of the Heresy. In Shattered Legions, the fractured Iron Hands, Salamanders, and Raven Guard strike back against Chaos, while The Crimson King reveals Magnus the Red’s tragic path as he struggles with his own ambitions and the pull of Chaos. Tallarn captures relentless mechanized warfare on a poisoned world, and Ruinstorm follows loyalist Primarchs racing against time to defend Terra. Old Earth shows Vulkan’s journey of faith and endurance, and The Burden of Loyalty brings to light the inner conflicts faced by those on both sides of the divide. Through each tale, part eight underscores loyalty as both strength and burden, illuminating the immense cost of faith in a galaxy tearing itself apart.

**WARNING: SPOILERS AHEAD**


XLIII. Shattered Legions: The Remnants of War

Shattered Legions brings together stories of the Iron Hands, Salamanders, and Raven Guard – legions shattered but not defeated after the massacre at Isstvan V. United by a mission of vengeance, the survivors channel their grief and fury into a relentless guerrilla campaign against Horus’s forces, conducting sabotage missions, raiding supply lines, and striking traitor forces from the shadows. Each story captures the searing pain of betrayal felt by those left behind and the unbreakable resolve that drives them to turn their losses into acts of defiance.

This anthology explores the strength that emerges from loss, showing how even fractured legions can have an impact. The warriors of the Iron Hands, Salamanders, and Raven Guard are marked by grief but united by an unyielding loyalty to the Emperor and a thirst for justice. Their resilience becomes their weapon, as they prove that they can still fight back against overwhelming odds, refusing to let Horus’s betrayal go unanswered. For these warriors, vengeance becomes a form of survival, and their guerrilla warfare speaks to the undying spirit of the loyalist legions, even when they are outnumbered and seemingly defeated.

Shattered Legions showcases loyalty forged through shared hardship, illustrating that even in the depths of despair, warriors driven by a common purpose can achieve extraordinary feats. The anthology captures the resilience of the loyalists, portraying them as more than remnants – they are symbols of hope and resistance. Through stories of sabotage, sacrifice, and sheer willpower, Shattered Legions stands as a tribute to those who refuse to surrender, showing that loyalty and vengeance, combined, can create a force that defies even the darkest circumstances.

XLIV. The Crimson King: Magnus’s Fate

The Crimson King follows Magnus the Red and the Thousand Sons as they grapple with the aftermath of their exile into the Warp. Devastated by the consequences of his actions on Prospero, Magnus is a Primarch haunted by shattered dreams and the guilt of leading his legion into ruin. His pursuit of forbidden knowledge has cost him dearly, and now he finds himself teetering on the edge of despair, watching as his once-proud legion succumbs to the creeping corruption of Chaos. Yet, even in his darkest moments, Magnus is driven by a desperate hope for redemption. His quest to reclaim his soul becomes a journey that drags him deeper into the Warp, where the seductive whispers of Chaos grow ever louder.

The novel laments the tragedy of Magnus, a brilliant but flawed Primarch whose quest for enlightenment ultimately led him astray. The Crimson King explores the consequences of ambition unchecked, illustrating how Magnus’s insatiable thirst for knowledge became his downfall. His journey is marked by regret and introspection, as he struggles to reconcile his ideals with the grim reality of his actions. As he seeks redemption, Magnus’s encounters with Chaos reveal the painful irony of his fate: that in striving to save his legion, he may lose everything to the very powers he once sought to understand.

The Crimson King is a story of ambition and loss, where the line between noble intent and tragic folly is painfully thin. Magnus’s arc serves as a cautionary tale about the dangers of unchecked desire, showing that even the greatest minds can be ensnared by their own brilliance. Through his journey, the novel underscores that good intentions can pave the way to ruin when one becomes blinded by pride and ambition. Magnus’s fall is both a personal and ideological tragedy, a stark reminder that even the Emperor’s most gifted sons are vulnerable to the seductive and corrupting influence of Chaos.

XLV. Tallarn: The War of Attrition

Tallarn chronicles one of the most gruelling campaigns of the Heresy, a relentless clash of armoured forces on a world left poisoned and desolate. The Iron Warriors, ever the masters of siege craft and attrition, unleash a devastating virus bomb on Tallarn, transforming its once-thriving surface into a toxic wasteland. Amidst the radioactive rubble, loyalist defenders take to their armoured vehicles and steel themselves for a brutal, drawn-out battle of survival. Forced into the shelters and caverns beneath the poisoned skies, these warriors engage in mechanized warfare under the bleakest conditions, with both sides clawing for control in a war where terrain and even air are deadly.

This anthology paints a vivid portrait of the horrors of mechanized warfare, capturing the grinding reality of tank combat in an environment that wears down soldier and machine alike. Tanks clash in the shadow of massive iron fortifications, and every battle is one of endurance as well as firepower, with neither side willing to relent. The loyalists, entrenched in their principles, push back against the Iron Warriors’ relentless tactics, knowing that failure on Tallarn could have severe repercussions for the broader war. Meanwhile, the Iron Warriors, led by their siege-hardened leaders, view Tallarn as a test of their patience and skill, utilizing the desolation they’ve created to their advantage, hoping to finally crush those who stand against Horus’s advance.

Tallarn explores the depths of resilience and the sheer determination that characterize the Heresy’s final stages. With its themes of survival, attrition, and the impact of unyielding brutality, this anthology dives into the psychological toll on those who fight, showcasing warriors whose minds and spirits are worn down by the unending grind of war. Each story within Tallarn reveals not only the physical toll but the mental and emotional costs of waging war on a planet turned into a hellscape, where neither side can truly claim victory until one is utterly broken.

Through the lens of this poisoned world, Tallarn underscores the desperation fuelling both loyalists and traitors in a galaxy nearing its breaking point. Each battle fought on this desolate ground is a microcosm of the wider war—a contest where ambition and revenge clash with loyalty and duty, with every manoeuvre adding weight to the galaxy-spanning tragedy of the Horus Heresy.

XLVI. Ruinstorm: Breaking Through the Warp

Ruinstorm follows Roboute Guilliman, Sanguinius, and Lion El’Jonson as they embark on a harrowing mission through the Warp to break Horus’s grip on the galaxy. Horus and his allies have unleashed a torrent of chaotic storms, isolating loyalist forces and blocking their path to Terra. For Guilliman, Sanguinius, and the Lion, reaching the Emperor is not just a matter of duty; it’s a race against time to prevent Horus from dealing the final blow to the Imperium. Each Primarch knows that if they fail, the galaxy will be left at the mercy of Chaos, and the Emperor’s vision will fall to ruin.

As they plunge into the Warp, the loyalist Primarchs face more than just daemonic forces and deadly ambushes—they confront their own doubts, fears, and the crushing weight of their responsibilities. Guilliman, known for his strategic genius, is forced to operate in a realm where logic and order have no place. Sanguinius, burdened by visions of his own doom, must summon every ounce of courage to continue the journey, knowing that he may not survive the Heresy. Lion El’Jonson, torn by conflicting loyalties and a fierce desire to prove himself, faces trials that challenge both his resolve and his loyalty to his brothers. Their journey is one of shared purpose but individual struggle, with each Primarch confronting the personal toll the Heresy has exacted on them.

Ruinstorm captures the unity and strength of the loyalist Primarchs, each fighting not only against Horus’s traps but also against the darker aspects of their own nature. Together, Guilliman, Sanguinius, and the Lion forge a bond of perseverance and shared determination, embodying the spirit of loyalty that stands as a beacon against the overwhelming forces of Chaos. The novel highlights their sacrifices and the lengths they will go to protect the Imperium, proving that even in the galaxy’s darkest hours, brotherhood and purpose can defy the Chaos that seeks to consume them.

Ruinstorm is a story of resilience, loyalty, and the fierce determination to protect Terra at any cost. Through its portrayal of these three Primarchs, the novel underscores the strength that comes from unity and the power of shared conviction. In the face of daemonic forces and a twisted, hostile galaxy, Guilliman, Sanguinius, and the Lion demonstrate that even when all seems lost, true loyalty to the Emperor’s vision can light a path through the storm.

XLVII. Old Earth: The Journey of Vulkan

Old Earth follows the Salamanders’ Primarch, Vulkan, on a soul-searching pilgrimage back to his volcanic homeworld of Nocturne. As he traverses the galaxy, Vulkan wrestles with haunting visions and the weight of his role as a Primarch, questioning not only his purpose but the very legacy the Emperor has set before him. The journey becomes a profound exploration of identity, resilience, and sacrifice as Vulkan faces his own doubts about the Emperor’s vision and the unyielding demands placed upon him and his legion. Haunted by memories of past battles and the countless lives lost, he grapples with the cost of loyalty and the strength needed to carry on amidst the Heresy’s devastation.

Vulkan’s path is both physical and deeply spiritual, forcing him to confront his own vulnerability, even as he remains an unbreakable figure to those who follow him. Throughout this pilgrimage, Vulkan embodies endurance, his resolve tested not only by enemies but by the internal conflict between his devotion to the Emperor and his personal sense of morality. Nocturne, a planet of fire and transformation, serves as the crucible for Vulkan’s doubts and a place where he can reconnect with the values that define him. His journey ultimately becomes one of self-discovery, pushing him to rediscover the meaning of resilience in a universe where faith in the future is scarce.

Old Earth serves as a meditation on the nature of endurance, hope, and the legacy left by those who continue to fight against Chaos, even when the odds seem insurmountable. Vulkan’s pilgrimage reminds readers that the Heresy is more than a battle for survival; it’s a test of spirit, one where leaders like Vulkan become symbols of unyielding loyalty and hope for those under their command. Through Vulkan’s journey, Old Earth emphasizes that true strength comes not just from physical power but from the ability to shoulder unimaginable burdens and inspire others in the darkest times.

The novel underscores the themes of legacy and sacrifice, showing that even in the face of annihilation, there are still those like Vulkan who will give everything for a future they may never live to see. Old Earth is a powerful exploration of the values that endure even as the galaxy crumbles – a reminder that amidst the horror of the Heresy, the Imperium’s defenders continue to fight, holding onto hope that their sacrifices will one day bear fruit.

XLVIII. The Burden of Loyalty: Stories of Commitment and Betrayal

The Burden of Loyalty brings together stories that delve into the deeply personal struggles of loyalty and the heavy costs it exacts on those entangled in the Heresy. From steadfast loyalists like Rogal Dorn, tasked with the immense responsibility of defending Terra, to characters like Garro, who embodies unwavering dedication in a fractured galaxy, each tale reveals the complexities and sacrifices required by loyalty. For some, loyalty is a source of strength, binding them to their cause with unbreakable conviction. For others, it becomes a burden, forcing them to confront the painful clash between duty and personal ambition, illustrating that in the Heresy, loyalty is rarely simple.

This anthology explores loyalty’s double-edged nature, showing how devotion to a cause can uplift or destroy. Characters across both sides of the conflict struggle with the sacrifices demanded by loyalty, as they confront choices that may cost them everything, including their lives, their beliefs, or their humanity. The stories reveal how loyalty can be both empowering and isolating, binding individuals to their ideals even as it forces them to face profound suffering and sacrifice. Through these tales, The Burden of Loyalty illustrates the emotional toll of the Heresy, capturing the burdens borne by those who fight to uphold the Imperium or abandon it for a cause of their own.

As the Siege of Terra draws near, The Burden of Loyalty underscores the complexity of allegiance in a galaxy torn apart. This collection captures the Heresy’s human side, portraying loyalty not merely as obedience but as a deeply personal struggle that can either fortify or fracture those who uphold it. Through the diverse stories within, The Burden of Loyalty becomes a portrait of the unrelenting demands of faith and duty, showing that in the Heresy, loyalty is a weight each individual must bear, for better or worse, until the end.


Part eight of the Horus Heresy series captures the profound and often painful complexities of loyalty, offering glimpses into the inner lives of those who shoulder the burdens of allegiance in a galaxy at war. In Shattered Legions, we see the fractured but unyielding spirit of the Iron Hands, Salamanders, and Raven Guard as they channel their grief into acts of vengeance, proving that even broken legions can still strike at Chaos. The Crimson King brings us the tragic journey of Magnus the Red, a Primarch who, in seeking redemption, ultimately finds himself further ensnared by the powers he once sought to understand.

Tallarn immerses readers in the relentless tank battles of a devastated world, portraying the sheer determination of both loyalists and traitors in a war where even the poisoned air becomes a weapon. In Ruinstorm, the loyalist Primarchs Guilliman, Sanguinius, and the Lion race against time and Warp storms to reach Terra, embodying resilience and unity as they navigate the horrors unleashed by Horus. Old Earth follows Vulkan’s pilgrimage to Nocturne, where he confronts the weight of legacy, faith, and sacrifice, redefining strength as he prepares his legion for the dark days ahead. Finally, The Burden of Loyalty offers a deeply introspective look at the individuals who must reconcile their commitments with the staggering costs, showing that loyalty is both a gift and a curse in the galaxy’s most trying times.

This section of the series explores the profound emotional weight of loyalty, revealing it as a force that both binds and tests. As the Heresy reaches its final stages, the stories in part eight underscore the diverse and deeply personal ways that loyalty manifests, becoming a source of strength, sacrifice, and sometimes suffering. In a galaxy descending into chaos, these tales remind us that loyalty, whether empowering or burdensome, is the last stand against an uncertain future. Each story offers a glimpse into the hearts of warriors, Primarchs, and survivors who carry this weight to the end, illuminating the bittersweet nature of loyalty in the face of annihilation.