Carl arrives at the southern front under heavy bombardment. He orders captured NPCs separated from mercenaries with strict protocols. The artillery stops, and 1,000 weaponized Rot Sticker Behemoths charge—injected with steroids and infected with the incurable Gurgles, rabies, and “insanity.” Defenders use dynamite, earth walls, and buried explosives. When some behemoths breach the trenches and infect defenders, crawlers use a flamethrower to contain the outbreak. Victory explains the Reavers—an enemy group—exploited the rules by infecting the creatures before the magic ban.

In the planning bunker, Carl meets Colonel Boomer, a grizzled elven veteran commanding the 106th Bloody Leeches. They review Naga territory intelligence: The Nagas have 40 large trebuchets, 50 zebra-mounted mercenaries, 20 tanks, and 100 invisible Madness Monkeywrenchers. The northern front under Florin faces the bulk of the enemy. Boomer warns that Epitome Tagg’s guard and the Madness Viceroys are especially dangerous. Carl gives the order to proceed with the assault.

The Posse’s trebuchet fires Dazzlers, combining strobing lights with loud music. Louis begins his bombing run. Donut orders the charge, and over two thousand soldiers surge forward under invisibility spells. Carl’s squad rushes into no-man’s-land.

An enemy spell removes all smoke and illusions, exposing the charging soldiers. Carl takes cover and activates a Build Trench scroll that exploits a bug allowing it to join existing trenches, creating a passage directly into the enemy trench. Carl activates Daughter’s Kiss and leaps onto the enemy.

Carl awakens after 25 seconds of unconsciousness from Postcoital Blues. The assault has succeeded; retreating enemies jumped into the middle trench, which NPC spies had filled with acid and covered with illusion. Command transfers to Boomer while Carl’s squad proceeds to their true objective. Carl and Donut board Party Planner, discovering two stowaway children.

The aircraft lands near the Prism headquarters. Carl and Donut kill exterior guards, enter, and confront Empress D’Nadia. Carl puts on the Ring of Divine Suffering, a divine artefact which gives him a list of all potential marks, enabling him to kill them at speed.

Milk, a former crawler turned NPC, runs hidden Calligraphy and Cartography guilds inside Club Vanquisher, one of the two dungeon-based clubs in the series; the other being Club Desperado. A Xenopus—a crawler race, resembling a cross between a frog and a bat—and sixth Cookbook author, Milk has been forgotten by dungeon administration. When vampire crawler Miriam heals her—an unprecedented act of kindness from a crawler—Milk willingly reveals a map of secret entrances, moved by the compassion, breaking years of her passivity. Later, it is revealed that Carl thinks of Milk as his “sister,” in the sense that they are fellow-crawlers and kindred spirits.

Carl enters the Prism throne room under a cover of smoke. Empress D’Nadia deliberately keeps herself slightly injured to prevent the Ring of Divine Suffering from working (it can only sense marks with 100% health). Carl throws banger spheres through her shields while Donut’s clockwork Mongo-duplicates tear through all three. Carl casts a healing scroll to bring D’Nadia to full health and marks her with the Ring.

Overcome with rage, remembering D’Nadia’s cruelty to Tsarina Signet (an NPC whom D’Nadia mentally tortured in a previous book), Carl nearly loses control and tells Donut to step aside so he can kill D’Nadia himself. Donut intervenes, telling Carl he is scaring her. Carl restrains himself and lets Donut proceed.

Mongo kills D’Nadia; the Prism is defeated. Corporal Pillbox convinces Carl to spare his two remaining friends from rival factions. Victory informs Carl of a mandatory warlord roundtable. Carl is now Party Leader because his base stats exceed Donut’s. Florin’s northern position is collapsing. Carl thanks Donut for grounding him; she asks him to throw away the Ring as it is making him unstable, but Carl says he still needs it.

Carl assigns mercenary Toyotomi to defend Shanty Town, the settlement on the periphery of Larracos concentrated with NOCs. Li Jun reports a strange old woman with a shopping cart—Agatha the Residual—came looking for Carl. His liaison Zev relays a direct order from Syndicate Prime Minister Glory: Carl must not interact with Agatha.

A notification alerts them that the alien faction Madness has occupied the Prism throne room. Carl reveals he left a Madness mercenary inside deliberately to sow discord between the Dream (another faction) and Madness. Their next target is the Operatic Collective.

Carl and Donut return to their safe room, where the blood bar activates—Carl has eight hours. The reverse-countdown mechanism of the blood bar ensures players don’t stay in a safe room for more than 10 hours. Donut receives a bleeding, crying spell book called War Crime. Florin reports heavy enemy pressure from the north. The anti-air battery and hangar bay are destroyed by sabotage.

Donut discovers a new Reaver safe room door. Carl realizes an enemy used a doggy-door upgrade through the old bait shop entrance. He spots compromised soldiers—dead mages controlled by Gondii brain worms—kills one and warns the army, ordering that Tina, the allosaurus who calls Mongo “Papa”, should be unleashed.

Defenders hold the castle against invisible Madness Monkeywrenchers, Reaver paratroopers, and brain-worm-controlled mages. Rosetta reports a compromised mage is remotely disabling protections. Defenders use Donut’s heat-vision glasses to spot invisible enemies. Imani arrives with reinforcements.

Carl reconsiders using Tina, a child soldier, but Donut overrides Kiwi’s refusal with a direct warlord order. Tina emerges and attacks the Monkeywrenchers. Donut delivers a rallying speech and the Princess Posse charges.

Carl climbs to the barracks roof. Tina charges into Reaver cyborgs while crawlers summon card monsters. An invisible Dreadnought attacks Carl, and he beats it to death. His trap sense detects enemies arming satchel charges; he casts Tripper, triggering a massive explosion. Crawlers recover first and finish off stunned cyborgs.

Donut spots the compromised mage Lonnie fleeing toward the castle. Carl uses Daughter’s Kiss to leap from the roof and kill the last worm. Samantha arrives covered in leaves after Louis accidentally dropped her from the airplane.

Mordecai urges Carl to destroy the bait shop entrance. The massive northern army arrives at the castle led by King Rust of the Skull Empire, not Prince Stalwart, his son, as expected. Tipid explains Rust’s enhanced level of 78 is likely because he used a Ring of Divine Suffering and a Necklace of Indelible Woe to steal spells. Donut identifies dozens of high-level spells.

Donut and Rosetta argue over spending funds on defenses versus morale-boosting banners. Tipid quietly notes Rosetta has history with King Rust. Kibben prepares an albino rhinoceros as Donut’s mount for the parley.

Donut mounts the rhinoceros while Florin reports the 101st stopped the enemy column and captured two Weeper tanks, though the enemy is bypassing them. Carl and Donut approach King Rust for a parley under magical bubbles that disable chat and prevent attacks.

King Rust reveals his daughter Princess Formidable has commandeered a warship heading for a Venus satellite station to manually activate the system fail-safe, causing a nova. Formidable announced publicly that the Skull Empire builds secret backdoors into all military hardware. Rust asks Carl to message his daughter on behalf of Earth, offering to withdraw his army in exchange. Formidable is more likely to listen to Carl than her father.

Carl privately messages Donut that the fail-safe won’t work because he already deactivated it, and tells her to play along so they can attack the retreating army. As Rust turns to leave, Rosetta erupts from the ground, leaps onto his mount, and decapitates him. Tens of thousands of enemy troops charge.

Volteeg, a former pet bat turned gargoyle and Cookbook author, had been working security on an auditor’s barge for the Operatics until Porthus convinced him to act. When Rosetta kills Rust, Volteeg fills a Weeper tank with volatile energy balls and drives toward Warlord Hortense’s command caravan while playing Mozart. He detonates the tank, killing over 10 thousand soldiers including Hortense, eliminating the Operatic Collective.

Carl rushes toward Rust’s corpse with Rosetta, who scans the dead orc’s hand and head to access his financial accounts. An enemy mage’s Dispel collapses the ground, dropping them into a dwarf tunnel where allies have killed Rust’s guards.

Volteeg’s explosion destroys the Operatic forces. Rosetta completes her account transfer—stealing billions—then breaks down sobbing. Carl is suddenly teleported to the Desperado Club.

Carl appears in the office of Orren, an independent liaison between the syndicate and the dungeon. Orren reveals they intercepted Carl’s private message about the fail-safe and now know about his illegal implant. Orren creates a zero zone, where a player’s enhancements stop working and the AI loses control, and asks if Carl can undo what he did. He admits another liaison ordered that Carl should be killed, but the AI intervened.

Before Carl can respond, Growler Gary, a gnoll bartender at a saferoom in the dungeon, appears in the doorway clutching a vodka bottle, saying he must interrupt the conversation.