Arc 3Science Against Pollution

Theus built Castel’s schools and factories while investigating how new technology could trigger Cognitive Interference and Pollution. By the end, his experiments had shown that magic could help produce steel parts for a steam engine, and he prepared to expand the island’s industry and education.

  • Nora warned Theus that learning about Pollution had broken his Cognitive Barrier, then left for the Northern Territory as Theus resolved to pursue science rather than accept the Church’s secrecy.
  • Theus ordered steam-engine blueprints sent to Ash and began expanding Castel’s roads, school, and factories, while Ivan decided that Gaia and Ken would both attend school.
  • Theus and Alexei developed cheap soap and explored nitroglycerin production, but Theus halted the dangerous workshop after workers ignored safety rules.
  • Theus learned that workers had secretly made nitroglycerin and eaten soap, then discovered that the products’ unexpected properties might be caused by Cognitive Interference.
  • Theus imposed martial law as Pollution outbreaks struck Castel, and the Banshees contained a corrupted wolf while he mapped the incidents and concluded that they followed patterns.
  • Theus explained to Alexei that scientific observation could make Pollution understandable, then investigated physical Pollution and tested whether Ash’s stone-changing spell could affect iron ore.
  • Josh bought Castel soap at the new department store, while Theus and Connor discussed how trade and spending had begun to enrich the island.
  • Theus confirmed that Nini’s spell could melt steel without causing Cognitive Interference, then ordered molds made for a steam engine and planned new science classes.
Chapters 51–75 Vol. 1 Read

Ch. 51Cognitive Barrier

After rescuing Monica, Nora explained to Theus that ignorance protected ordinary people from Pollution, while learning about it could break that protection. She revealed that Transcendents were another form of life, and traced Monica’s sudden outbreak to the [Cognitive Barrier] being broken.

  • Nora prepared to return to the Northern Territory, but Theus stopped her to ask about Pollution.
  • Nora told Theus that people who did not know Pollution existed could not be polluted, while Transcendents were more vulnerable to discovering it.
  • Nora demonstrated that she had no heartbeat and revealed that Buriers were immortal, explaining that Transcendents were another form of life.
  • Theus asked why Monica’s Pollution had suddenly erupted, and Nora explained that his ignorance had protected him until she told him specific details about Pollution, breaking his [Cognitive Barrier].

Ch. 52Transcendent Curse

Nora explained to Theus how his knowledge of pollution had triggered Monica’s catastrophic transformation and warned him that Transcendence was a curse, not simply a source of power. After Nora left, Theus questioned whether his plans to reshape the world through science and industry could work in a world governed by pollution and Transcendent forces.

  • Nora told Theus that his words had shattered the Banshees’ [Cognitive Barriers], causing pollution to surge and converge on the already contaminated Monica.
  • Nora explained that the [Burier] had been essential to stopping Monica and said the Church would not act against Theus as long as he did not bring pollution.
  • Theus asked why nobles knew so little about transcendent power, and Nora called it a transcendent curse that brought pain and madness alongside power.
  • Nora warned Theus to remain ignorant and stay away from Transcendence, then left by ship.
  • Theus sat alone and questioned whether his plans for industrialization could succeed, realizing that most of his accomplishments had depended on Transcendent power.

Ch. 53How Could Science Be So Inconvenient?!

Theus remembered why he had descended: to destroy the world’s entrenched suffering, not to join its corrupt rulers. He decided to adapt scientific knowledge into a weapon against Pollution and began planning new projects in Castel.

  • Theus recalled his final death as a factory worker after he improved machinery and shared knowledge with his fellow laborers.
  • Theus rejected the idea of accepting the Church’s secrecy, the workers’ suffering, and the nobles’ oppression as unavoidable.
  • Theus reasoned that scientific knowledge and industrial products might function as a new form of Pollution that he could use against other Pollution.
  • Theus imagined Castel’s factories and scientific creations reshaping the world and unsettling the Church’s influence.
  • Theus ordered Connor to send the Steam Engine blueprints to Ash, summon Alexei to discuss the workshop, and accompany him to the chemistry laboratory.

Ch. 54School

Ivan’s family weighed the cost of sending Gaia to school against the need to earn a living, while Ivan planned to learn a trade at the new workshops. The chapter ended with Ivan deciding that both Gaia and Ken would go to school.

  • Ivan returned home to find Gaia cooking fish and Ken bringing back fruit, and he said his construction work paid two leo a day.
  • Gaia asked whether Ivan’s work would continue after the workshops were finished, and Ivan planned to train as a craftsman and make Ken an apprentice.
  • Ivan worried that schooling would cost money Gaia might need for a dowry, though he knew she wanted to attend the new free school.
  • Ken urged Gaia to go to school and offered to keep working to support her, while Gaia insisted she did not need to study.
  • Ivan remembered his late wife and ended the argument by deciding that both Gaia and Ken would go to school.

Ch. 55Chemical Laboratory

Theus showed Alexei his chemistry laboratory and explained that the territory needed a road through the mountains to support large-scale olive oil production. He prepared to demonstrate a successful chemical reaction, leaving Alexei unsure what to expect.

  • Alexei reported on the school, workshop renovations, and mineral survey, but Theus told him they also needed to build a road through the mountains.
  • Theus explained that the new factory would produce olive oil in quantities too large to transport by hand and gave Alexei candy from Nora to ease pollution effects.
  • Theus showed Alexei a fire-equipment box and warned him that olive oil fires had to be extinguished with dry sand rather than water.
  • Theus led Alexei to his chemistry laboratory, where Connor brought materials for a demonstration.
  • Theus said the laboratory preparations had succeeded and that chemical reactions might be ready for large-scale production.

Ch. 56A Seemingly Normal World

Theus demonstrated that his soap could rival the Church’s Number Nine Holy Water at a tiny fraction of the cost, and Alexei saw its enormous commercial and political potential. Theus then explained that scaling production would require better roads and revealed that glycerin, not soap, was his true target.

  • Theus showed Alexei how effectively soap cleaned grime, and Alexei compared it to the Church’s Number Nine Holy Water.
  • Theus revealed that soap cost only fifty Gold Rum per ton and could be produced at about three tons per day, stunning Alexei with its affordability and potential reach.
  • Connor explained that soap was easy to transport and that future automation and access to raw materials could reduce costs further.
  • Theus and Connor discussed the need for roads between the factories and the olive-growing region, and Theus explained that making soap also produced glycerin.
  • Theus told Alexei that glycerin was not merely a byproduct but the product he truly wanted.

Ch. 57Nitroglycerin: One Medicine, Two Uses

Theus demonstrated nitroglycerin’s power as both heart medicine and an explosive, then explained how Alexei could begin producing soap. He left Alexei to organize the factory and headed to the school, postponing his trip to the church until that night.

  • Theus showed Alexei and Connor nitroglycerin, and Alexei detonated a few drops by striking soaked cotton with a hammer.
  • Theus explained that nitroglycerin required sulfuric acid and nitric acid and could not yet be produced in large quantities.
  • Theus taught Alexei the soap-making process, and Alexei said the factory could begin work the next day.
  • Theus told Alexei to follow the factory manual and said he would handle staffing the school himself.
  • Theus headed to the school and asked Alexei to announce registration to the citizens.
  • Theus told Connor to postpone their church visit so they could find Sister Chloe that night.

Ch. 58Enrollment

Ivan took Ken and Gaia to register at the school opened by Theus, where Gaia became fascinated by a mechanical clock and enrolled in hopes of studying machinery. Theus also announced night classes and a student patrol, and Ivan joined the patrol so he could watch over his children.

  • Ivan brought Ken and Gaia to the school to learn about registration, where they saw Theus and a mechanical clock.
  • Gaia asked Theus how the clock worked and became absorbed in its gears and moving parts.
  • Theus explained that he would teach mechanical principles and encouraged Gaia to use machinery to change the world.
  • Gaia asked to learn how to make a clock, and Theus told her to first learn to read with Miss Zoe.
  • Ivan learned the school offered night classes and signed up for the patrol team so he could escort and watch over Ken and Gaia.

Ch. 59Seeing Chloe Again

Nora sailed toward the Northern Territory with refugees and sent Theus a warning about Chloe, whom she suspected was a spy from another Church. In Castel, Chloe arranged for exiled skilled workers to work for Theus and told him an Investigator would soon arrive.

  • Nora learned that negotiations between the Northern Territory and its local lord had failed, and decided to deliver the refugees by ship.
  • Nora sent a letter warning Theus that Chloe was not part of the Candlelight Society, using a White Crow to carry it beyond the pigeon’s usual route.
  • Chloe told Theus that the Candlelight Society would send exiled criminals and an Investigator to Castel, and Theus agreed to employ the skilled workers.
  • Chloe said the body to be buried nearby belonged to a purified cultist who had also been named Theus.

Ch. 60Banshees' Spells

Ash organized the banshees as they settled into their new home, documenting their spells and distributing weapons sent by Theus. The chapter ended with Theus asking whether any banshee spell could bring the dead back to life.

  • Ash watched the banshees expand their cavern and began recording their spells for Theus.
  • Ash demonstrated how her summoning spell could combine with nitroglycerin to create an explosive attack, while considering how her magic might help build parts for Theus's steam engine.
  • Ash summoned the banshees through their work group and showed them crates of weapons provided by Theus.
  • The banshees teased Monica about her size and weapons until Nini caught and lifted her during a scuffle.
  • Ash told Theus the weapons were of limited use, and Theus promised custom equipment and asked if a spell could bring the dead back to life.

Ch. 61Production Accident

Theus discussed whether a soul could be restored after death, then asked Ash to retrieve deep-sea Pollution from the Abyssal Trench. He addressed dangerous production problems on the island and ended by considering the skilled workers the Candlelight Society planned to exile as a solution.

  • Ash explained that physical death could be reversed with life force, but a dead soul could not be saved, and Theus wondered whether souls could exist apart from bodies.
  • Theus asked Ash to bring back Pollution from the Abyssal Trench because he suspected deep-sea Pollution differed from other kinds.
  • Alexei reported that soap production had started successfully but that workers were ignoring safety rules in the soap and nitroglycerin workshops.
  • Theus ordered the nitroglycerin workshop sealed, directed Alexei to improve worker training and safety incentives, and put nitroglycerin production on hold.
  • Theus considered having the Banshees run the nitroglycerin workshop and remembered that Chloe had mentioned skilled workers the Candlelight Society planned to exile to the island.

Ch. 62The Meaning of Knowledge

Theus brought Zoe to teach the Banshees to read and write, then explained that knowledge could free them from lives dictated by their strength and role as warriors. The Banshees remained uncertain but were left with his challenge to learn and change their fate.

  • Theus offered Zoe an allowance to teach the Banshees, and she agreed after learning the pay could help her buy novels.
  • Theus introduced Zoe to the Banshees and said she would teach them literacy before they chose what else to study.
  • Monica questioned why the Banshees needed knowledge when they could communicate through Mind Link, and Theus asked what they wanted from their lives.
  • Theus compared the Banshees' forced fighting to their former enslavement by the Fishmen, arguing that they still lacked freedom of choice.
  • Theus used Zoe's rise from miller's daughter and maid to teacher as an example of how learning could change a person's fate.

Ch. 63A World Gone Mad

Theus discovered that his craftsmen had produced non-explosive nitroglycerin with medicinal effects and soap that was edible despite being made by the same process as ordinary cleaning soap. He was left baffled by the inexplicable results and the strange capabilities of his workers.

  • Theus learned that craftsmen had secretly made nitroglycerin after the workshop was shut down because they wanted to keep their unusually high-paying jobs.
  • Alexei showed Theus the yellowish liquid, which did not react to a hammer strike or fire but produced the effects of nitroglycerin medicine when tasted.
  • Theus learned that workers in the soap workshop had secretly eaten some of their product, believing it might be food.
  • Alexei and Theus tasted bars from two batches and found that one was ordinary cleaning soap while the other was delicious and edible, despite both being made through the same process.

Ch. 64Cognitive Interference

Theus recovered from the shock of discovering that cognition could affect physical reality and named the phenomenon Cognitive Interference. He suspected that new technologies could trigger it and that powerful factions had suppressed technological progress, then returned to his noble body intent on investigating the phenomenon.

  • Connor told Alexei that Theus had not left his study, where Theus sat motionless and not breathing beside a notebook bearing the line, “Science no longer exists.”
  • In the ancient palace, Theus reviewed his memories and concluded that reality could be altered by subjective cognition, but that the effect must follow rules.
  • Theus named the phenomenon Cognitive Interference and reasoned that soap and nitroglycerin might have triggered it because they were new technologies.
  • Theus suspected that major powers had restrained technological development to prevent a serious consequence of Cognitive Interference.
  • Theus wondered whether sharing scientific ideas had led the Church to kill him in his previous life, and decided to return and conduct experiments.
  • Theus descended into his noble body, while Worker Theus raised his head in the palace and looked thoughtfully between the throne and Noble Theus.

Ch. 65Martial Law

After learning that altered soap and nitroglycerin might be linked to Cognitive Interference, Theus hid the discovery and ordered cautious tests. Fearing the Church’s response signaled a danger he did not understand, he placed Castel under martial law and sent the Banshees to secure the island.

  • Theus told Alexei to document the incidents, keep the soap workshop’s secret, control the worker who had eaten soap, and suspend night school while warning islanders to stay indoors.
  • Theus ordered Connor to send samples of the altered soap and nitroglycerin away from Castel for testing, then tested samples with dogs but found no visible effects.
  • Theus recalled that a Church priest had killed him in his previous life without hearing his explanation and decided to copy the Church’s response to Cognitive Interference.
  • Theus ordered Connor to have Alexei command the island’s defenses and keep everyone indoors unless ordered otherwise.
  • Theus linked with the Banshees, who armed themselves, came ashore across Castel, and watched the island as it went under martial law.

Ch. 66Sudden Upheaval

Theus deployed the Banshees across Castel to contain any danger related to Cognitive Interference and went to watch the church with Ash. After learning that experimental soap vanished into Pollution about ten kilometers from the factory, he received reports of a widespread outbreak that buried Una.

  • Theus ordered the Banshees to patrol in pairs, remain concealed, and report anomalies while he instructed Zoe to keep the manor’s servants indoors.
  • Theus and Ash went to the church, where he stayed nearby and asked Ash to hide while he monitored the Mind Link.
  • Ash told Theus that soap carried toward the Abyssal Trench and into the open sea had disappeared, turning briefly into a small amount of Pollution about ten kilometers from the factory.
  • Group Seven reported tangible Pollution pouring from the sky near the soap factory, and Theus ordered nearby teams to investigate.
  • Several groups reported simultaneous anomalies, and Group Nine announced that Una had been buried by Pollution.

Ch. 67Safe Tonight

Theus coordinated the Banshees as Cognitive Interference caused Pollution to appear across Castel, and they handled the outbreaks and captured a corrupted wolf. After noticing Chloe at the church, Theus kept his distance and ended the operation at dawn, ordering the wolf brought to him.

  • Theus ordered teams to monitor the sudden Pollution outbreaks and sent Teams Thirteen and Two to investigate after Team Nine went silent.
  • Team Nine reported that Pollution had fallen from the sky and buried Una, but both Banshees were safe; Teams Thirteen and Two confirmed they were uninjured.
  • Team One reported that a wolf had become a monster after being hit by Pollution, and Theus ordered the team to keep it alive for study.
  • Theus directed the teams to lure the slowly moving Pollution toward a location he chose.
  • Ash pointed out Chloe leaving the church, but Theus chose not to reveal himself or approach her.
  • At dawn, Theus ended the operation, thanked the Banshees for protecting Castel, and ordered them to bring him the corrupted wolf.

Ch. 68Methodology

Theus explained to Alexei how studying Cognitive Interference and Pollution could let them predict and control outbreaks instead of shutting down the factories. He left Alexei with a scientific method for understanding and mastering the world’s strange phenomena.

  • Castel’s islanders admired the thriving factories and hoped to work at the new factory, unaware that Pollution had forced production to stop.
  • Alexei asked Theus whether the factories had to shut down because Cognitive Interference caused random Pollution outbreaks.
  • Theus showed Alexei their map and notes, explaining that the outbreaks followed patterns and could be investigated rather than simply feared.
  • Theus argued that Transcendence, gods, Pollution, and Cognitive Interference were natural phenomena that could be understood through observation and experiment.
  • Theus urged Alexei to use science to observe, understand, experiment, utilize, and ultimately master the world.

Ch. 69How to Develop Industry in an Idealist World?

Theus explained to Alexei how workers’ understanding could prevent Cognitive Interference and keep new factories operating. He planned to teach the advanced class, retrain the soap workers, and use the collected Physical Pollution for his research.

  • Alexei reconsidered his fear of monsters and Pollution after Theus’s explanation of science.
  • Theus identified that Cognitive Interference arose when workers used new technology without understanding its true purpose.
  • Theus concluded that properly educated workers could prevent Cognitive Interference and keep factories running.
  • Theus asked Alexei about the school and agreed to teach its advanced class himself.
  • Theus ordered the nitroglycerin workshop shut down temporarily, directed Alexei to explain the soap-making principles to its workers, and told him to guard the site where Physical Pollution had been collected.
  • Theus said he would explain Physical Pollution and Banshees to Alexei because the Pollution would be useful to him.

Ch. 70Turn Stone to Mud?

Theus explained the Banshees and Pollution to Alexei, then examined the Banshees’ magic for ways to overcome Castel’s manufacturing limits. He ended by asking whether Ash’s Turn Stone to Mud spell could affect iron ore.

  • Theus told Alexei about the Banshees but kept their abilities and Symbiotic Pact secret, and he said he would not conscript them except in an emergency.
  • Theus explained physical and cognitive Pollution, warned Alexei to keep people away from the guarded stone caves, and speculated that Pollution held energy.
  • Ash showed Theus the Banshees’ spells, including a sea serpent that vanished when she withdrew her mana.
  • Theus asked whether Turn Stone to Mud could work on steel, and Ash said it only affected stone.
  • Theus asked whether the spell could affect iron ore, leaving Ash frozen.

Ch. 71Ideas

Theus investigated how Ash’s Turn Stone to Mud spell worked and hypothesized that it temporarily lowered stone’s melting point. He sent Nini away to test whether the spell affected iron, then went with Ash to examine physical pollution collected in a pit.

  • Theus watched Ash cast Turn Stone to Mud on basalt and noticed the rock’s holes vanished after it solidified again.
  • Theus hypothesized that the spell made stone behave like magma at room temperature, and Ash suggested that Nini test the idea with an iron plate.
  • Theus sent Nini to an uninhabited island east of Castel and told her companions to wait a day before returning, in case the test triggered Cognitive Interference.
  • Theus and Ash went to the stone caves, where Monica explained that the Banshees had trapped the physical pollution by suspending a wolf above a pit.
  • Ash activated Flesh Magic, grabbed a handful of the pollution, and presented it to Theus for examination.

Ch. 72Utilizing Pollution

Theus tested whether solidified Pollution could be burned and found that his blood could keep it from escaping through a furnace’s vents. He then asked Ash to study a captured Polluted wolf, and she chose to investigate it herself rather than delegate the task.

  • Theus and Ash tested solidified Pollution in a stove, where it slowly shrank but repeatedly tried to escape the flames.
  • Monica suggested using Theus’s blood around the furnace vents, and the Pollution stayed away from them when he tried it.
  • Theus asked Ash to have Nini’s group test the burning Pollution elsewhere and cautioned them about possible Cognitive Interference.
  • Theus brought Ash to a cage containing a Polluted wolf and asked how it obtained energy and what it ate.
  • Ash agreed to observe the wolf and decided to study it herself instead of assigning the task to others.

Ch. 73Castel-Made

Josh visited the newly opened Department Store, where he discovered the range of goods and bought scented soap made on Castel. The soap’s packaging revealed the words “Made in Castel,” leaving Josh to recognize the meaning behind Castel’s name.

  • Josh noticed the lord’s new Department Store and entered after work, curious about what it sold.
  • Josh found Ken working as a shop clerk and was amazed by the neatly arranged goods on the shelves.
  • Ken showed Josh the different soaps and invited him to try washing his hands with one.
  • Josh bought three scented bars of soap after learning that workers could get a monthly discount.
  • Josh examined the wrappers and read “Made in Castel,” then connected Castel’s name with its meaning: “Fire and light amid the storm.”

Ch. 74Meaning

Theus explained to Connor how paying workers and selling goods kept money circulating as Castel developed, convincing Connor that the island was growing richer despite its nearly empty treasury. Theus then asked Connor to investigate Beatrice Joan as a possible connection to Rhine’s noble circles and a way to promote soap.

  • Connor reported that Theus’s shops had sold out more than two thousand goods on their opening day, with soap selling best.
  • Theus explained to Connor that money gained value through trade and showed him how Castel’s factories, roads, gathering teams, and school had transformed the island.
  • Connor realized that circulating money had made Castel and its people wealthier, and Theus praised him for understanding that the recovered money needed to be spent again.
  • Theus asked Connor to investigate Beatrice Joan’s background and connections among Rhine’s noblewomen so she could help promote soap.
  • Connor recognized the Joan Family’s influence in royal salons, agreed to investigate, and left with Theus’s gold coin in his pocket.

Ch. 75The Long-Awaited Steam Engine

Theus discovered that Nini’s spell could melt steel at room temperature, allowing him to cast parts for a steam engine using simple molds. As he set the craftsmen to work, he planned for the fuel supply and engineering education the island would need, and looked forward to workers from the Candlelight Society arriving.

  • Theus confirmed that Nini’s Turn Stone to Mud spell could melt steel without triggering Cognitive Interference, and celebrated the prospect of building a steam engine.
  • Theus ordered Connor to gather blacksmiths, potters, and carpenters to make molds from his blueprints.
  • Theus considered how Castel Island would fuel its steam engines without coal mines and concluded that he would need to import coal eventually.
  • Theus decided to add physics, chemistry, and mechanics to the school’s classes, though he would have to teach them himself.
  • Theus realized that the workers promised by the Candlelight Society could provide valuable factory experience and skilled labor.
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