Chapter Summaries

Romulus Quirinus fought Perturabo in a brutal duel, enduring his attacks until he learned to read and counter him. Romulus overwhelmed the Iron Giant and prepared to make him pay for the lives he had destroyed, while Ramesses watched another battlefield from within the Warp.

• Romulus exchanged blows with Perturabo, who grew jealous and furious when Romulus dismissed his grievances.
• Perturabo battered Romulus repeatedly as the battle spread around them and the Iron Circle Automata were gradually destroyed.
• Romulus adapted to Perturabo’s fighting style and psychic pressure, seized Forgebreaker, and struck a weakness in Perturabo’s defense.
• Romulus overpowered Perturabo, tore through his body, and declared that he would pay for his selfish delusions.
• In the Warp, a Greater Daemon of Tzeentch asked Ramesses how he intended to deal with him, and Ramesses watched a battlefield shrouded in bloody mist.

Ramesses watched Romulus weaken Perturabo while the Lord of Change realized the Primarchs had outmaneuvered their foes. At Tucana Bastion, Fafnir Rann recognized the World Eaters’ siege as a major threat and faced Kosolax the “Oathbreaker” at the breach.

• Ramesses prepared to use the Mogta Stone fragments against Perturabo after Romulus wore him down with the combined health reserves of four people.
• The Lord of Change realized the four Primarchs constantly prepared and adapted, while Perturabo had squandered his hidden advantages.
• The World Eaters and Khorne’s Daemons battered Tucana Bastion’s outer ring wall, threatening to expose the Void Shield Generators.
• Fafnir Rann fought through the defenders’ breach and recognized Kosolax the “Oathbreaker” across the high wall.
• Rann decided to kill Kosolax.

Kosolax resisted Khorne’s attempt to control him and led a group of World Eaters toward Karna, with Akhor and Ladis helping him break through the Blood Angels’ defenses. He reached the Archangel and attacked, embracing the chance to meet his end on his own terms.

• Khorne forced Kosolax to his knees, but he resisted the Blood God’s control and turned away from Rann’s challenge.
• Kosolax decided to reach Karna and asked Akhor to help lead the World Eaters through the Blood Angels’ defenses.
• Akhor and Ladis guided Kosolax’s force toward the Archangel as the World Eaters fought through the defenders and suffered heavy losses.
• A massive cannon destroyed part of the first ring wall, and Rann spotted Kosolax’s force heading toward Karna instead of the Blackstone Artifacts.
• Kosolax charged through the remaining defenders and reached Karna, declaring, “Kosolax salutes you!” before attacking.

Karna slew the Bloodthirsters attacking the battlefield, inspiring Kosolax as the World Eater charged toward him and died. Karna then turned to face the rift and the endless tide of Demons.

• Karna used a shockwave and blazing attacks to scatter and kill the Bloodthirsters.
• Kosolax watched Karna destroy the Blood God's minions and found the strength to reach him.
• Kosolax charged through the Blood Angels' line, but his body burned away before he could finish speaking.
• Karna killed the last Bloodthirster with his gunstock and watched Kosolax fall, deciding humanity would remember him and the World Eaters' corruption.
• Karna faced the rift and threatened the Demons as the Greater Daemons shrank back from his gaze.

Karna slaughtered the Bloodthirsters on Cadia while Ramesses watched the battle and judged Arthur’s forces dependable. Seeing his prized Greater Daemons threatened, the Blood God reconsidered sending them against Karna and began to take humanity’s champions seriously.

• Karna used his speed to impale a Bloodthirster and burn it to ashes.
• Ramesses watched Karna’s fight, then confirmed that Arthur’s Dark Angels were crushing the Emperor’s Children at the rift.
• The Blood God raged as Karna claimed the skulls and souls of his forces, while Ka'Bandha asked permission to fight.
• The Blood God considered the danger to his eight mightiest Bloodthirsters and weighed whether they could defeat Karna on Cadia.
• After recognizing that humanity’s champions could truly destroy Greater Daemons, the Blood God began to think carefully about his opponents.

The Blood God watched the war for Cadia stall as the Blackstone arrays and increasingly capable mortal defenders hampered the Daemonic advance. He realized that humanity was turning toward four new powers, while Angron’s growing rage and defiance threatened his control.

• The Blood God recognized that the Blackstone arrays had to be destroyed before he could send Angron to capture Karna, and he doubted Slaanesh’s forces could overcome Arthur and the Dark Angels.
• He observed that the Cadian defenders had become better equipped, organized, and resistant to corruption, frustrating the Daemons’ attempts to seize the fortresses.
• The Blood God realized that the four new powers were winning humanity’s allegiance and could even offer the fallen a chance to escape the Chaos Gods.
• Angron spoke of everyone’s right to fight, then roared and slaughtered a Bloodthirster as his rage grew beyond the Blood God’s control.
• The Blood God turned back to Cadia, saw that the mortals were gaining the advantage, and acknowledged that he was losing to them.

Commissar Alex directed Imperial forces as they secured most of Apus Bastion’s Third Ring Wall and inflicted heavy losses on Khorne’s daemon host. When an Emperor’s Children warband infiltrated another sector, Alex called for Inquisitor Aglaia’s guidance and arranged reinforcements, leaving the battle’s next threat underway.

• Alex received reports that Imperial forces were encircling the enemy and approved a halt to suppressive artillery fire so the Astartes could finish the fight in melee.
• Alex learned that more than two hundred thousand troops had been lost, but that supplies remained uncontaminated and the forces held an absolute advantage.
• Alex and Messinius declared confidence in the Imperial forces’ victories as their troops continued to secure the bastion.
• A messenger reported that an Emperor’s Children warband had infiltrated the N8-32 sector and was torturing prisoners while gathering intelligence.
• Alex identified the warband as the Flesh-Carving Blood Skulls and requested reinforcements, including an Astartes tactical squad, a Librarian, and elite Astra Militarum troops.

Aglaia’s elite team ambushed and destroyed an Emperor’s Children convoy, then continued its purge as Apus Bastion prepared orbital bombardments. At Pavo Bastion, Fulgrim faced Arthur and attacked again, while Drach’nyen wondered what kind of being the knight was.

• Aglaia triggered a psychic blast that disrupted the Emperor’s Children convoy, letting her squad destroy the attackers in a barrage.
• Kaldor Draigo and Diego led the Grey Knights through the wreckage, killed the survivors, and collected their souls for interrogation.
• Aglaia reported the purge to Apus Bastion, learned that Emperor’s Children warbands were active in other sectors, and received orders to continue the operation while avoiding an imminent bombardment.
• Alex and the Dark Angel realized the Emperor’s Children could no longer sustain their assault on Pavo Bastion as Fulgrim watched his forces fall to the Dark Angels.
• Fulgrim attacked Arthur again, and Drach’nyen stared at the unmoving knight, confused by what it sensed.

Arthur defeated Fulgrim in their duel, and Fulgrim reflected on the addictive corruption that had consumed him before promising to pursue Arthur again. As Arthur prepared to finish the war, Khorne took up a sword and moved to join the battle.

• Fulgrim used his four arms and Drach'nyen to attack Arthur, but Arthur caught the blade and wounded Fulgrim, throwing the Emperor's Children into further chaos.
• Arthur knocked Fulgrim down, pinned him in the mud, and drove his blade through Fulgrim's skull.
• Fulgrim recalled how Slaanesh's ecstatic highs had left him unable to care about anything but chasing the next peak, then vowed to pursue Arthur until one of them was broken.
• Arthur diced Fulgrim's body into mince and left Drach'nyen among the ashes, while Fulgrim laughed and declared the war nearly over.
• Khorne found his target and seized a sword from the edge of his throne.

After Fulgrim’s defeat doomed the Chaos assault, Eidolon fled through the wreckage of his ship, pursued by the Avengers and haunted by the loss of his Legion. The chapter ended as an unseen pursuer caught him and seized him by the neck.

• Fulgrim’s defeat and Perturabo’s failed decapitation operation left the Chaos forces’ assault on Pavo Bastion effectively lost.
• Eidolon crawled through the wreckage of an Emperor’s Children escort ship, which the Lord of Knights had cut in half, and realized his warband and rebuilt Legion had been destroyed.
• Eidolon watched the Shattered Legions hunt the surviving Emperor’s Children and continued searching the wreckage for a way to escape.
• Eidolon found no usable shuttle and headed through a damaged passage toward an abandoned hangar.
• Eidolon heard a Kill Team approaching, tried to flee, and was caught by a figure in purple and gold that grabbed him by the neck.

Rylanor defeated and killed Eidolon, declaring that the Shattered Legions would make their enemies pay. Romulus overcame Perturabo and began a ritual to extract the essence of his identity, determined that the traitor Primarch would have no next time.

• Rylanor rejected Eidolon's pleas, overpowered him in a duel, and crushed his skull after Eidolon tried to stab him.
• Rylanor declared that he and the Shattered Legions would remember their betrayal and make their enemies pay.
• Perturabo admitted defeat to Romulus but remained confident that he could use the lessons of the war in a future fight.
• Romulus reflected on the immense casualties and devastation caused by Perturabo's war, rejecting the idea that it had been a game.
• Romulus called on Ramesses as their prepared ritual began using Perturabo's vessel and the Mogta Stone fragments to draw out Perturabo's essence.

Ramesses waited for Tzeentch to interfere with the ritual, but the Chaos God remained absent as Romulus confronted and defeated Perturabo. The chapter ended with Perturabo realizing that his failure would bring his death as his authority was taken from him.

• Ramesses staged the ritual and tested for Tzeentch’s interference, but the Lord of Change fled and no one disrupted the spell.
• Romulus told Perturabo that the confrontation was not a game and that he was tired of the Primarchs and the history they brought with them.
• Romulus drained Perturabo’s strength and anchored his soul, leaving Perturabo unable to resist.
• The Governor used the Mogta Stone to collect Perturabo’s authority over technology and its preservation.
• Romulus declared that Perturabo would die, and Perturabo understood that he had no chance to recover from his failure.

Romulus stripped Perturabo of his power, and Perturabo faced the Emperor, who acknowledged his failures as a father but refused to forgive him as a human. With Perturabo’s fate unresolved, Romulus ordered the Dawn Fleet to destroy the Iron Blood and press the campaign onward.

• Romulus released Perturabo’s failing body as the Eternal Crusade attacked the Iron Blood and the Iron Warriors gathered around their defeated Gene-father.
• The Emperor appeared before Perturabo, named him his son and Lord of Iron, and admitted that he had burdened him unfairly and failed to recognize his sacrifices.
• Perturabo wept, accepted the Emperor’s love, and stepped forward after the Emperor warned that he, Perturabo, and the four twisted beings would all pay for their actions.
• Dantioch asked Romulus for orders, and Romulus commanded the fleet to help destroy the Iron Blood, bombard occupied zones, and notify the forces around the Eye of Terror of their victory.
• Arthur watched the smoke-filled sky as lances fell, remaining vigilant despite the apparent victory.

Arthur and the Imperial forces watched the battle turn decisively against the Iron Warriors after Perturabo’s death, but feared Chaos would still find a way to retaliate. As humanity’s forces prepared to finish the counteroffensive, veterans looked toward the being who had brought them hope of a true victory.

• Arthur guarded Drach'nyen while the Order of the Pentagram listened to the blade’s whispers and watched him for any sign of wavering.
• Arthur noticed that Perturabo was dead and the Iron Warriors were collapsing as they tried to recover his body.
• Ramesses discussed Perturabo’s contradictions with Arthur, who worried that Karna’s instincts pointed to Khorne’s next move.
• Arthur kept the Holy Sword active while Imperial fleets, aircraft, and ground forces launched a coordinated counteroffensive against the Iron Warriors.
• Imperial commanders stayed wary despite the improving battlefield, and veterans turned their attention toward the being they hoped would deliver a true victory.

Arthur confronted the Sword of Khorne over Cadia and used the Holy Sword’s overloaded power to meet the god’s attack. After the Warp tides stabilized, he declared complete victory, and humanity’s forces surged forward against the remaining enemies.

• The Sword of Khorne formed in the sky above Cadia as its Warp power overwhelmed the planet and defeated attempts to stop it.
• Karna prepared to intervene, but Ramesses recommended Arthur, who stepped forward despite the danger.
• Arthur activated his reality-stabilization and overload systems and revealed the Holy Sword’s true name: Sword of Victory Pledge.
• Arthur’s golden torrent collided with the Sword of Khorne, dispersing its clouds and stabilizing Warp tides within twelve light-years of Cadia.
• Arthur promised complete victory, and the warriors rallied to advance against the remaining enemies as Romulus laughed.

The Eternal Crusade rammed the Iron Blood as the Black Templars boarded and fought the Iron Warriors. After Perturabo’s apparent death, Barban Falk tried to escape with his body and revive him, while Frix refused to flee and charged into battle, where he was killed.

• The Eternal Crusade tore through the Iron Blood, and the Black Templars led by High Marshal Ledodus fought the Iron Warriors inside the ships.
• Barban Falk cut open Perturabo’s throne seals while Honsou and Frix struggled to hold the bridge; Frix saw that Perturabo was dead, but Falk insisted he could still be revived.
• Falk ordered Frix to clear corridors and cover the retreat as the Warsmiths carried Perturabo toward the Warp Engine and prepared to escape through a portal.
• Frix refused to leave with Falk and led his Terminators toward the Black Templars, while Falk escaped with Perturabo’s body.
• Frix toppled a Saturnine-pattern Dreadnought and tried to kill its pilot, but another controlled Dreadnought destroyed him, reducing him to ash.

After the war ended, Alex fell asleep while Arthur found his retirement application and left him to rest. On Cadia, Cassia watched over her newborn twins, while Karna and the Blood Angels helped with recovery work and prepared to return to the people.

• Alex arranged the postwar resettlement provisions, then collapsed onto a bench as the troops celebrated their victory.
• Orlando worried that Alex was dead, but Arthur said he was only tired and covered him with a cloak.
• Arthur read Alex's retirement application, which said he wanted to live near a military academy and write a book, then left him to rest.
• Cassia Allen gave birth to twins, but when a medical worker told her to watch over them, she stayed beside their incubator.
• Karna and the Blood Angels helped with cleanup and relief efforts, and Karna greeted Ramesses with a fist bump.

The Imperium celebrated its victory at the Cadian Gate as Romulus and his allies considered plans for the future. Two months later, Nurgle watched the Aeldari Goddess of Life and plotted amid the aftermath of his own defeat.

• The World Eaters were annihilated, Perturabo died, and the Iron Warriors fled Cadia with his remains while the Emperor’s Children withdrew intact.
• Aglaia joined the victory parade preparations as Alex worked on his autobiography with Trazyn, and Diego, Navar-Dalen, and Marcus discussed the Grey Knights’ return to Terra and postwar reforms.
• Aeonid Hill told Drakus he planned to return to Macragge, while the commanders and four Primarchs gathered for the parade.
• Romulus and his companions led the parade, celebrating the Imperium’s costly victory and considering plans to reform the Mechanicus, advance technology, and revive Guilliman.
• On 7 July, Nurgle stirred his Cauldron and watched the Aeldari Goddess of Life, deciding he still needed time and allies.

Nurgle watched the Wings of Dawn disrupt the future and began planning how to weaken them by targeting Roboute Guilliman and the civilization they had built. He prepared new gifts for one of his children while taking delight in the four young leaders celebrating together.

• Nurgle watched the Wings of Dawn advance through linear time and concluded that he lacked time to brew a plague capable of stopping them.
• Nurgle decided to rely on Khorne's power and target the Wings of Dawn's civilization, with Roboute Guilliman as the most practical target.
• Nurgle planned to gather the descendants of the Cursed One who had not yet recognized themselves and to exploit the strain of a massive, multifaceted offensive.
• Nurgle boiled Primaris Space Marine bodies with other biological material into killing machines, then formed them into pods and bestowed them upon his beloved child.
• Nurgle watched the four young leaders celebrate with their allies and laughed at the genuine bonds they shared.

Magnus and Mortarion agreed to forge a plague weapon aimed at Roboute Guilliman after discussing the Emperor’s possible Primarch replacements and their weaknesses. Fulgrim left Fabius Bile’s laboratory with a Lion El'Jonson clone, still insisting that the blood sample he had provided belonged to Arthur.

• Ku'gath, Mortarion, and Magnus discussed the dangers beyond Nurgle’s garden and the Emperor’s manifestation at Cadia.
• Magnus told Mortarion that the Emperor had made replacements for the Primarchs and suggested their historical prototypes could reveal their weaknesses.
• Mortarion agreed to forge Magnus a weapon based on the story of Romulus murdering his brother, while both concealed who would wield it against Guilliman.
• Khorne watched Angron slaughter on the battlefield and chose to endure rather than act.
• Fulgrim confronted Fabius Bile because the blood sample he claimed came from Arthur had produced a Lion El'Jonson clone.
• Fulgrim took the clone’s culture vessel and left, telling Bile to continue researching.