Chapter Summaries

Khârn and the World Eaters were trapped and devastated by Orpheo’s Ultramarines, whose adamantine armor and superior coordination overwhelmed them. As Khârn faced defeat, a Dreadclaw landed beside him and delivered a giant who mocked the fallen World Eaters.

• Khârn recognized that the Ultramarines wore unfamiliar armor and realized they had lured his force into an ambush.
• Orpheo’s more than one hundred Ultramarines in adamantine armor counterattacked, cut down the World Eaters, and closed their encirclement.
• Khârn’s weapons failed against the Ultramarines’ armor and shields, and bolter fire wounded him until he fell to his knees.
• Khârn recalled Angron’s past and the War Hounds who had charged their primarch before the World Eaters around him were killed.
• A Dreadclaw crashed down beside Khârn, forcing the Ultramarines back as a giant stepped out and called the World Eaters weak and foolish.

Angron fought off the Ultramarines surrounding him, but their adamantium armor and concentrated fire wounded and overwhelmed him. He escaped to the World Eaters' landing zone with Khârn, while the Regent ordered the Ultramarines to proclaim that they had routed him.

• Angron kicked the wounded Khârn into a drop pod to protect him, then charged the surrounding Ultramarines with Bloodfather and Bloodson.
• Angron's chainaxe chipped against an Ultramarine's adamantium armor, and the Ultramarines closed in with plasma guns and meltaguns.
• Angron's Butcher's Nails erupted in pain, and he battered Ultramarines with his fists and an unconscious warrior's armored body.
• The company captain stabbed Angron in the back, but Angron grabbed him and threw him away as artillery fire approached.
• Angron seized Khârn from the drop pod and fled toward the World Eaters' landing zone, escaping the Ultramarines.
• The Regent ordered the Ultramarines to return to the defensive line and broadcast that Angron had fled.

Lox completed Virgin Star’s transformation into the Virgin Battle Planet, a heavily armed mobile weapon built to aid Guilliman’s forces at Amattra. Guilliman ordered it into the Warp, beginning its journey toward the coming battle.

• Guilliman and Lox watched gravity generators compress Virgin Star into a dense, spherical battle planet.
• Lox and the Adeptus Mechanicus finished installing engines, weapons, command systems, and a Warp engine, while Guilliman insisted that humans retain control of the planet.
• Lox explained that the battle planet’s neutron cannon could devastate enemy ships but required more than twenty-four hours to cool down after firing.
• Lox assured Guilliman that repeated short-range Warp jumps would let the battle planet withstand the storms on the route to Amattra, though they would exhaust its navigators.
• Guilliman ordered the Virgin Battle Planet to depart, and it entered the Warp carrying Astartes, mortal troops, vehicles, and Titans.

Guilliman and Lox pursued the battle planet with the Red Alert, and Guilliman declared that Ultramar had mastered planetary jump technology. On Amattra, Ophio exploited a traitor command center’s destruction but grew wary of the enemy’s unexplained inactivity as he waited for reinforcements.

• Lox told Guilliman where the battle planet would next emerge, and the Red Alert jumped ahead to intercept it.
• Guilliman celebrated the new planetary jump technology before the Red Alert and battle planet jumped toward Amattra.
• An Ultramarine captured in adamantium armor overloaded its antimatter furnace at the traitor headquarters, destroying the command center.
• Ophio seized the resulting confusion to kill more than two thousand Astartes, over a million traitor auxiliaries, and four Ravager-class Titans.
• Ophio noted Angron’s absence and the enemy’s lack of major attacks, and worried that the outnumbered Ultramarines were facing a hidden trap.

Lotara sought Lhorke’s counsel about the World Eaters’ faltering war and Angron’s decline, while the Conqueror grew increasingly sinister. Kharn joined them and condemned Angron as a slave to the Butcher’s Nails, ending with the call for greater strength.

• Lotara explored the damaged, uncanny Conqueror and awakened Lhorke to ask about the Legion’s future.
• Lhorke compared the Ultramarines’ transformation under Guilliman with Angron’s failure as a primarch.
• Lotara admitted that the Butcher’s Nails were destroying Angron and that the Mechanicus could not remove them without killing him.
• Kharn emerged from the darkness, called Angron a slave and a monster, and said the World Eaters needed greater strength.

Argel Tal and Raum performed a ritual to give Khârn greater strength, but the Warp creature they summoned failed to form a symbiotic bond with him. Khârn devoured the creature, glimpsed the vast will tormenting his father, and emerged with enough power to face his opponent.

• Khârn removed his armor as Argel Tal and Raum opened a fissure in the Warp and summoned a creature to bond with him.
• The Warp creature entered Khârn, but their fusion faltered, and it tried to seize control of his body.
• Khârn fought the creature as his body mutated, while a psychic shriek tore through the Conqueror and Argel Tal shielded Lotara and the Dreadnought.
• The daemon Kam cried that a powerful being had long watched Khârn’s human friend, and Khârn began devouring the Warp creature instead of joining with it.
• Khârn saw the eye that had watched his father and understood that a vast will had tormented him alongside the Butcher’s Nails.
• Khârn suppressed his bloodlust, mastered his new strength, and prepared to end the fight.

As the Shadow Crusade devastated Amatara, Orpheo prepared a strike against Angron or Lorgar while Khârn displayed terrifying new powers on the battlefield. Khârn faced a squad of Ultramarines as the unseen force within him urged him to kill them for greater strength.

• Orpheo received reports of heavy losses and learned that Angron and Lorgar had arrived on Amatara, then ordered the Librarius to prepare for a decapitation strike.
• Khârn and Argel Tal stormed Amataran positions, where Argel Tal killed soldiers with a Custodian spear and escaped a grenade blast.
• Khârn charged through a Sicaran tank’s autocannon fire, tore open its armor, and slaughtered its crew.
• After hanging the crew’s heads from his waist, Khârn felt an unseen presence approve of his slaughter and demand more blood and skulls.
• Argel Tal grew uneasy about Khârn’s unnatural strength, while a squad of Ultramarines challenged him and the voice urged him to kill them.

Khârn and Angelta fought through the Ultramarines as the rebels and Ultramarines escalated their battle across Amattra. Khârn resisted the unseen power urging him to offer a blood sacrifice, leaving the battle still raging.

• Khârn charged the Ultramarines’ shield wall with his empowered chainaxe, while Angelta used daemonic fire and his guardian spear to kill and wound several Ultramarines.
• Khârn recognized that the Ultramarines had deployed an unusually large force, and the World Eaters and Word Bearers joined the fighting from the rear.
• The rebel commanders celebrated their numerical advantage and prepared to exploit the Ultramarines’ deployment, while both sides committed heavy weapons and war machines.
• Khârn tore through the Ultramarines’ defenses and killed more than thirty of them as his speed and bloodlust grew.
• Khârn heard an unseen presence urging him to say “Blood sacrifice,” but he refused and struck himself with his chainaxe to resist its control.

Orpheo used himself as bait while searching the battlefield for Angron, the World Eaters’ Primarch. As Khârn and Orpheo fought a prolonged duel, Angron finally emerged and charged at the Regent.

• Orpheo’s swordsmanship caught Khârn’s attention, and the two warriors charged at each other across the battlefield.
• Orpheo fought Khârn while searching for Angron, dismissing Khârn as a distraction from his real target.
• Angrath tried to reach Khârn but was held back by the Victors guarding Orpheo.
• Khârn and Orpheo battled for more than an hour as other Astartes kept clear of their duel.
• Angron charged at Orpheo, appearing just as the Regent had been waiting for him.

Angron pursued Ophio through Amatla’s ruins while the Victorious Army sacrificed itself to hold the Primarch in place. Ophio teleported back to the battle lines as the soldiers prepared to destroy Angron with an overloaded antimatter furnace.

• Angron hurled Khârn aside and charged after Ophio, who retreated under the Victorious Army’s protection.
• The Ultramarines delayed Angron as he fought through them and pursued Ophio into the collapsed ruins.
• Ophio and the Victorious Army confronted Angron at a dead end, where the soldiers attacked and then clung to him to immobilize him.
• Ophio activated his teleport beacon and returned to the battle lines while the twelve Victorious Army veterans stayed behind.
• The Victorious Army leader laughed at the struggling Angron as their overloaded antimatter furnace threatened to annihilate them all.

Orpheo’s forces unleashed a devastating explosion that appeared to kill Angron, leaving the World Eaters overwhelmed by the sudden loss of their gene-father. Kharn found Angron’s damaged weapons in the blast crater and wondered whether Angron had survived.

• Orpheo ordered his troops to withdraw, recover the fallen, and monitor the battlefield to confirm Angron’s death.
• The World Eaters felt their connection to Angron disappear, and Kharn returned to the blast site in grief.
• Anger Tai told Kharn that charging into the explosion would have killed him and reflected that Angron had spent his life enslaved.
• Kharn leapt into the crater and found Gorefather and Gorechild still faintly alive.
• Kharn picked up the weapons and wondered whether Angron might still be alive.

After the Ultramarines counted their devastating losses, Lorgar stopped the World Eaters from destroying Amatara by promising Khârn that Angron could be resurrected. Khârn agreed to sacrifice the planet, while Angron's lieutenant questioned the cost but joined the effort.

• Orfeo received the casualty report, confirmed the Ultramarines had fewer than two thousand battle-brothers left, and ordered them to hold until Guilliman's reinforcements arrived.
• Khârn and the World Eaters took control of the Conqueror's weapons to destroy Amatara, and Khârn killed a Word Bearers officer who tried to stop them.
• Lorgar froze the World Eaters and told Khârn that a ritual and adequate sacrifice could resurrect Angron; Khârn agreed to destroy Amatara.
• Lorgar ordered Khârn to gather the World Eaters and promised support from the Word Bearers and Blessed Sons to crush the planet's defenders.
• Angron's lieutenant questioned Lorgar about the cost of resurrection, then agreed to help Khârn destroy Amatara while privately doubting Lorgar's faith and judgment.

As the World Eaters and Word Bearers overwhelmed Amatara’s defenders, Orpheo prepared to make a last stand against Khârn and Argel Tal. Guilliman’s fleet arrived just as the planet still held, and Macragge’s Honour opened fire on the enemy ships.

• The World Eaters’ relentless assaults and indiscriminate orbital bombardments depleted the Ultramarines’ forces, leaving Orpheo’s adjutant to lament that they had not seen reinforcements from Macragge.
• Orpheo’s adjutant left the command center to fight, but Khârn killed him before Orpheo reached the front line.
• Argel Tal offered Orpheo surrender and warned him that the surrounded Ultramarines faced defeat, while Orpheo gathered the surviving warriors around him.
• A Warp rift opened near the Mandeville Point, and a thousand-ship fleet led by Macragge’s Honour arrived under Commander Marius Gage.
• Gage ordered the fleet to fire, and Macragge’s Honour concentrated its weapons on the damaged Conqueror until its void shields failed.

The Conqueror was destroyed after Gage ordered the final torpedo strikes, and Lotara Sarrin died as its Machine Spirit fell silent. The Ultramarines then fought the Word Bearers’ remaining ships while Gage launched a boarding assault on the Law of Truth, leaving Macragge's Honour under mounting pressure from the Hymn of the Three Saints and the Blessed Lady.

• Gage ordered the final torpedo strikes that broke apart the Conqueror, and Lotara Sarrin ejected Lhorke’s compartment before dying.
• The Conqueror’s wreckage began falling toward the planet, while the Law of Truth turned to engage Macragge's Honour.
• Gage sent Ultramarines boarding forces toward the Law of Truth as Word Bearers launched their own boarding attacks, sparking fighting across the ships.
• The Hymn of the Three Saints and the Blessed Lady overwhelmed Macragge's Honour with heavy fire as both fleets battled in the void.
• Macragge's Honour’s captain struggled to evade the enemy and exploit openings while its void shields neared collapse.

The Word Bearers pursued the damaged Macragge's Honour, believing the Ultramarines were nearly defeated, until a battle planet emerged from a vast Warp rift and devastated their fleet. The remaining Ultramarines focused on the Trisagion and the Blessed Lady while Lorgar remained on Amatara.

• Gage received the primarch's order and cleared a path for the secret weapon, prompting the Word Bearers to surround the Ultramarines fleet.
• A colossal Warp rift opened near the Mandeville Point, and a battle planet emerged into the star system.
• The Word Bearers' commander ordered his forces back to the Trisagion and the Blessed Lady, but a crewman warned that Lorgar was still on the surface.
• The battle planet fired tens of thousands of energy lances, destroying many Word Bearers warships and driving others to flee.
• Fleeing Word Bearers ships found Warp translation impossible at the disrupted Mandeville Point, and some were lost attempting to force a jump.
• The Ultramarines sent part of their fleet after the fleeing ships and concentrated the rest on the Trisagion and the Blessed Lady.

The battle planet’s gravitational lash crippled the Blessed Lady, and its neutron cannon destroyed the Word Bearers’ flagship in a single shot. Lorgar escaped with the Three Holy Litanies as the battle planet restarted its engines, leaving the Ultramarines victorious but unable to fire the superweapon again immediately.

• The battle planet reversed its field generators’ gravity and struck the Blessed Lady, warping its hull and causing explosions that killed crewmen and slave workers.
• Lorgar ordered his forces to flee, struck Kharn with psychic power until he came to his senses, and returned to the Three Holy Litanies.
• Lorgar ordered the Three Holy Litanies to escape despite the Blessed Lady being damaged and the Law of Truth being boarded.
• The battle planet fired its neutron cannon at the Blessed Lady, melting and destroying more than twenty kilometers of its hull and killing everything aboard.
• Lorgar used psychic power to dispel the crew’s fear and ordered them to flee, while Marius Gage celebrated the weapon’s success and lamented that it could not fire again immediately.

Barker Dillen and the Mechanicus crew awakened the battle planet’s Machine Spirit, pushing it beyond its designed output as Lox and Pika detected the influence of the Warp. With the Blessed Lady destroyed, the Word Bearers and World Eaters fled aboard the Trisagion while Lorgar mistook Guilliman’s victory for the result of a long-laid trap.

• Barker Dillen questioned Gage about the battle planet and praised its lost technology while concealing his suspicions about its origins.
• The Tech-Priests performed rites around the battle planet’s core, and their worship stirred its intelligence into self-awareness and drove its engines to 105% output.
• Lox and Pika detected that the battle planet had awakened and that traces of the Warp were affecting it.
• Guilliman told Lox that the Word Bearers and World Eaters had been defeated and that the Trisagion was attempting to flee.
• Lorgar blamed Guilliman for a calculated scheme, unaware that Lox’s battle planet had changed Guilliman’s original plan to drive the enemy away into an attempt to destroy them.

As the Ultramarines pursued the Three Sacred Prayers, Argel Tal urged the indecisive Lorgar to use psychic void mines and the Warp to escape. Lorgar struck bargains with the Chaos Gods and pushed the flagship into the Sea of Souls, leaving the Ultramarines behind amid Warp corruption.

• Marius Gage learned that Captain Mesaro's boarding party had secured the Law of Truth and ordered the fleet to continue pursuing the Three Sacred Prayers while hospital ships descended to Amatara.
• The Three Sacred Prayers could not find the Mandeville Point because the Macragge's Honour and the battle planet's gravity lash-cables distorted space-time.
• Argel Tal ordered psychic void mines deployed, creating a Warp storm that began pulling the Three Sacred Prayers into the Sea of Souls, though the lash-cables held part of the ship back.
• Argel Tal challenged Lorgar to act, and Lorgar plunged his psychic power into the Sea of Souls to open a stronger Warp rift.
• Lorgar made promises and conditions with the four Chaos Gods, whose power pushed the Three Sacred Prayers into the Warp.
• Warp corruption spread through nearby ships and the battle planet, but the Ultramarines activated their Gellar Field and could not stop the Three Sacred Prayers from escaping.

After the victory on Amatara, Guilliman visited the wounded Ophio and mourned the Ultramarines lost in the battle. He resolved to rebuild the devastated world as a monument to their sacrifice before turning back to the wider war.

• Marius Gage ended the pursuit of Lorgar and returned Macragge's Honour to Amatara after the loyalists destroyed the main World Eaters and Word Bearers forces in the Five Hundred Worlds.
• Guilliman agreed with Lox that Lorgar might still be caught in the region, but that reinforcing Terra was the priority, then went to meet Ophio on Amatara.
• Guilliman found Ophio gravely wounded after Lorgar attacked him and ordered the healers to save him and the other surviving Ultramarines.
• Guilliman recited the names and histories of the Ultramarines sent to Amatara and grieved that only sixty-three of the four thousand Astartes remained.
• Guilliman rallied himself, vowed to rebuild Amatara as a monument to the fallen, and declared that the Five Hundred Worlds would stand unbroken.

After the Battle of Amatra, Guilliman met Rowell McKen, the last survivor of the 627th Company, and heard his account of the company’s sacrifice. Rowell declined personal honors and a position as Guilliman’s adjutant, choosing instead to carry his fallen brothers’ ashes home and preserve their story.

• Guilliman learned that chronicler Rowell McKen had survived the destruction of the 627th Company and summoned him to hear its record of the battle.
• Rowell recounted the company’s combat achievements and said its members had fought without surrendering or fleeing.
• Guilliman offered Rowell a wish, but Rowell handed him his war notebook and asked that the people of Amatra not be forgotten.
• Guilliman invited Rowell to become his adjutant, but Rowell declined so he could return his fallen brothers’ ashes to their homeworlds.
• Guilliman gave Rowell travel clearance and an Ultramarines insignia, and promised to distribute his notes across the worlds.
• Rowell left aboard a medical ship, while Guilliman and Lox reflected on his courage and humanity’s hope.