Chapter 26: The Black Blood of the Earth

The perimeter of Dian Village was a symphony of organized chaos. The Rammed Earth wall had reached seventy percent completion, its inward-slanted “batter” design making it look less like a medieval barricade and more like the base of a modern dam.

Outside the wall, hundreds of laborers were buried waist-deep in the trench of the “Water Lock” moat, swinging heavy iron picks to break the dense clay and bedrock.

Takuya was in his office auditing the Duke’s ledgers when the door violently burst open. Hameel, Silas’s young assistant, stood panting in the doorway, his clothes smeared with a strange, dark sludge.

“Lord Takuya!” Hameel gasped. “You need to come to the eastern trench immediately. The foreman halted the digging. We hit… we hit something wrong.”

“Did they breach a subterranean river?” Takuya asked, instantly standing up.

“No, my lord. It’s not water. It’s… thick. And it smells foul.”

Takuya sprinted out of the headquarters, following Hameel to the eastern flank. A crowd of nervous laborers had climbed out of the deep trench, muttering among themselves. Silas stood at the edge, looking down with a deeply unsettled expression.

“Clear the way!” Silas barked as Takuya approached.

Takuya peered into the twenty-foot-deep trench. At the bottom, where a worker’s pickaxe had shattered a layer of porous shale, a thick, amber-black liquid was steadily seeping out of the earth, pooling over the stones. It had a sharp, pungent, deeply chemical odor.

Takuya felt his heart stop. He scrambled down the wooden ladder into the trench. He ignored the mud, kneeling beside the bubbling fissure. He dipped two fingers into the thick sludge, rubbing it between his thumb and forefinger. It was viscous, incredibly slick, and stained his skin a deep brown. He brought his fingers to his nose and inhaled the unmistakable scent of hydrocarbons.

“Lord Takuya?” Silas asked nervously from above. “Is it toxic? Should we fill it in?”

“Fill it in?” Takuya whispered, staring at his stained fingers. A slow, terrifying smile spread across his face. He looked up at Silas, his eyes burning with industrial fervor. “Silas. Do you know what this is? This isn’t mud. This is the black blood of the earth.”

“I don’t understand, my lord.”

“It is Crude Oil,” Takuya announced, his voice echoing in the trench. “A highly pressurized pocket of decomposed prehistoric biomass, trapped beneath the bedrock. The Dwarves mine for iron, but we just struck the fuel that powers empires.”

Hameel leaned over the edge, furiously writing on his clipboard. “What do we do with it, my lord? We can’t drink it, and it smells like a rotting swamp.”

“We refine it, Hameel,” Takuya said, climbing back up the ladder. “Once Inori returns, we will build a sealed iron boiler connected to a series of copper cooling tubes. It is a process called Fractional Distillation.”

Takuya pointed down at the puddle. “By applying specific, controlled heat to that crude oil, we can separate its chemical components based on their boiling points. The lightest vapor we capture will condense into Naphtha—a highly volatile, flammable liquid that I can use to create incendiary weapons that cannot be extinguished by water. The middle extraction will yield Kerosene.”

“What is Kerosene?” Silas asked.

“The end of the dark ages,” Takuya said flatly. “It burns brighter and longer than animal fat, with zero smoke. We will light the entire village and the hospital safely. And the thick sludge left at the bottom of the boiler? That is Bitumen, or asphalt. We will boil it and paint it over the Rammed Earth walls, rendering them completely waterproof, and we will use the rest to pave our roads. Silas, redirect your men. Dig a secondary reservoir to capture this flow immediately. No one lights a torch within fifty yards of this sector!”

✽✽✽✽✽✽

Miles to the west, deep in the uncharted, high-oxygen canopy of the Zephyr Forest, Inori was running for his life.

“Keep moving!” roared one of the veteran hunters, firing a heavy recurve arrow blindly over his shoulder into the dense, prehistoric ferns.

Behind them, a terrifying roar shook the foliage. Three Spike Bears—massive, mutated megafauna standing twelve feet tall with dense, keratinous armor plates jutting from their backs—were tearing through the underbrush. In a high-oxygen environment, insects and predators grew to monstrous, hyper-aggressive proportions.

“The river! Jump!” the second hunter yelled.

Inori, his lungs burning, didn’t hesitate. He practically threw himself off the muddy embankment, plunging into the freezing, fast-moving rapids of the Zephyr River. The logistician and the two hunters hit the water right beside him. The current swept them violently downstream, tumbling them over smooth rocks.

They surfaced fifty yards away, clinging to a massive, submerged tree root on the opposite bank. On the other side of the river, the Spike Bears paced angrily at the water’s edge, their scent trail broken by the rushing water.

Inori dragged himself onto the muddy bank, collapsing onto his back and laughing breathlessly. “Fascinating… the oxygen density allows for localized gigantism without collapsing their skeletal structure. Incredible.”

“You’re a madman, Alchemist,” the hunter groaned, pulling the logistician out of the water. “We need to move before they decide to swim. Logistician, map our coordinates. I’m going to mark the path so we don’t walk in circles.”

The hunter pulled a heavy steel hunting knife and walked to the nearest tree, a massive trunk with smooth, ashen bark. He slashed a deep “V” shape into the wood to mark their trail.

Inori sat up, wringing out his wet tunic. He glanced at the tree the hunter had just cut.

Something was wrong. Instead of clear sap, a thick, milky-white liquid began to rapidly ooze from the V-shaped wound, dripping down the bark like heavy cream.

Inori stopped breathing. He scrambled to his feet, ignoring his exhaustion, and ran to the tree. He caught a drop of the white milk on his finger. He rubbed his fingers together. As the liquid hit the air, it began to coagulate, turning incredibly sticky and elastic.

“No way,” Inori whispered, his eyes wide. He looked around. “Look at the canopy. Look at the leaves. Is it just this tree, or are there others?”

The logistician wiped his spectacles. “There is an entire grove of them, Lord Inori. Hundreds. Why? What is that milk?”

“It’s latex,” Inori said, his voice trembling with scientific ecstasy. “Hevea brasiliensis. The Rubber Tree.”

“Is it valuable?” the hunter asked, holding his knife.

“Valuable? It’s the missing link to our industrial revolution,” Inori grinned maniacally. “If I mix this raw latex with the sulfur we brought from the caves and apply heat, I create a chemical cross-link. It’s called Vulcanization. I can turn this milk into solid, heat-resistant rubber!”

Inori began pacing rapidly. “Takuya is designing machines that require high-pressure steam and crude oil, but metal-on-metal joints leak. With rubber, I can cast perfect, airtight gaskets and O-rings. And Kaguya… I can mold this into form-fitting surgical gloves so he can operate without contaminating the wounds!”

Inori grabbed the logistician by the shoulders. “Forget the mapping. Drop your spare gear. I need you to scour the base of every single one of these trees. We are not just taking the latex. We are taking the seeds.”

“The seeds, my lord?”

“Yes! If we take the seeds, we can plant a dedicated grove inside Dian Village. We will hold a total global monopoly on rubber!” Inori threw his hands up in triumph. “Look at what we’ve secured in seven days! We harvested the lipids from those massive fat-boars to synthesize glycerol and soap. We mapped a massive vein of magnesite for the steel furnaces. We found gold, iron, and now this! Harvest everything!”

✽✽✽✽✽✽

In a sterilized, temporarily converted wooden hut near the village square, Kaguya stood over a long wooden table. The air smelled sharply of high-proof alcohol.

“Pass me the tincture,” Kaguya ordered, holding out his hand without looking away from his mortar and pestle.

Sania, one of his new Clinical Assistants, quickly handed him a sealed glass vial containing a slightly green, translucent liquid.

“Thank you,” Kaguya said clinically.

Scattered across the table were the bruised roots of the Zephyr Nightshade, a rare plant Inori had forwarded from the forest edge days ago. Kaguya was currently performing a rigid Solvent Extraction. By mashing the alkaloid-rich roots and soaking them heavily in Clear-Water—the high-proof alcohol acting as a solvent—he was able to strip the active numbing chemicals from the plant’s cellular matrix. By slowly evaporating the alcohol afterward, he was left with a highly concentrated, liquid anesthetic.

Rinda, the senior nursing trainee, watched him carefully drop the green tincture onto a piece of raw animal meat.

“Master Kaguya,” Rinda asked respectfully. “The extraction is successful. The meat doesn’t react to pain stimuli. The frontline soldiers in the East are suffering terribly from arrow wounds. Can we not send this anesthetic to the Duke’s medics now?”

Kaguya stopped his work. He slowly turned his head, his cold, calculating eyes pinning Rinda in place.

“Medicine without precision is just poison, Rinda,” Kaguya said softly. “Do you know what the Therapeutic Index is?”

Rinda swallowed hard and shook her head.

“It is the mathematical gap between a dose that cures a patient, and a dose that kills them,” Kaguya explained, his tone shifting into a brutal lecture. “Plant-based alkaloids are incredibly volatile. Yes, this tincture will numb a soldier’s arm so I can amputate it without him screaming. But what if the chemical causes Necrosis?”

“Necrosis?” Sania asked quietly.

“Cell death,” Kaguya replied. “If I inject a localized anesthetic, I must know exactly how the chemical compound reacts with the patient’s living tissue. Does it simply block the sodium channels in the nerve endings, or does it physically rupture the cell walls of the red blood cells, causing massive internal hemorrhaging? If I use this now, I am guessing. And a surgeon does not guess.”

Kaguya looked down at the table in deep frustration. He tapped a blank piece of parchment.

“I have the chemical. I have the methodology. But I am blind,” Kaguya muttered, his jaw clenching. “I cannot see the cellular reaction with the naked eye. I am completely paralyzed until Inori returns from that forest with the purified silica glass. Once he grinds those microscopic lenses, I will build a microscope. I will observe a single drop of blood under magnification, and I will perfect the dosage down to the microgram.”

Kaguya turned back to his assistants, his demeanor icy and absolute. “Until we can see the cells, this anesthetic does not touch human skin. Understand?”

“Yes, Master Kaguya,” both girls answered simultaneously, awestruck by his unwavering commitment to scientific perfection.

The three brothers were scattered across the map, but their minds were working in perfect unison, pulling a medieval world into the industrial age by sheer force of will.