The next 48 hours were a blur of industrial panic.

The road from the Onyx Hall became a black river of coal. Warlord Gorak didn’t sleep. He personally hauled a cart meant for an ox, his massive muscles straining as he ran down the mountain. Behind him, forty Shell-Kin trudged, their shells piled high with anthracite.

“Faster!” Gorak roared at the convoy. “The cold death comes! Move!”

In Bastion, the landscape was being torn apart. The Treants dug a massive moat around the city. The Mud-Skippers mixed clay and straw, building tall, crude smokestacks spaced evenly along the trench. The Lizardmen, terrified of the rot, worked harder than anyone. They used their strength to pile the coal into the trenches, packing it tight.

[ CONSTRUCTION: THERMAL PERIMETER ]

[ PROGRESS: 80% ]

Red watched the map. The Green Cloud was close. It was eating the forest two miles south. The trees there were turning grey and dissolving into slush.

“It’s an extinction event,” Red noted grimly. “If one spore lands in the city, it spreads. It has to be airtight.”

He opened his [ BLUEPRINTS ]. He needed to make sure the fire burned hot and clean, not smoky.

[ BLUEPRINT: VENTURI AIR INTAKE ]

[ COST: 2,000 DP ]

He flashed the knowledge into the minds of the Mud-Skipper builders. Shape the base of the chimneys like this. It pulls air in. Makes the fire roar.

And then, the day arrived.

The sky to the South wasn’t blue. It was a sickly, bruising purple. Beneath it, a wall of green fog rolled over the swamp. It was silent, heavy, and terrifying.

Birds fell from the sky, dead before they hit the ground. Fish floated to the surface of the distant ponds, bloated with rot.

The Rotting Druid wasn’t sending an army. He was sending the atmosphere itself.

The defenders of Bastion stood behind their new wall—a trench filled with tons of black coal, topped with crude clay chimneys.

Krug stood on the Temple roof. His hands were wreathed in violet flame. Iron-Scale stood by the trench with a torch. Gorak stood covered in coal dust, panting.

“It comes,” Gorak whispered.

The cloud hit the perimeter of the cleared zone. The grass withered instantly.

Red hovered in the Void. He checked his Charge.

Red commanded. “Target the Trench.”

[ TARGET LOCKED: PERIMETER FUEL SOURCE (COAL) ]

“I don’t just want a fire,” Red whispered. “I want a Thermal Cyclone.”

“Output: 100x.”

“Concept: Convection – Updraft.”

[ COST: 5,000 DP ]

[ CHARGE REMAINING: 900% (9 STACKS) ]

“Light it,” Red ordered.

Krug raised his hands. He didn’t throw a fireball. He channeled the Violet Fire into the earth, connecting it to the coal.

WOOOMPH.

It wasn’t a crackle they had expected. It was a detonation.

The entire circumference of the city ignited instantly. The 100x Convection kicked in.

The fire didn’t billow smoke outward; it sucked air in with the force of a jet engine. The Venturi intakes screamed as oxygen was pulled into the trench.

The heat shot straight up.

A wall of shimmering, violet-tinged distortion rose from the trenches. It climbed hundreds of feet into the air, forming a dome of superheated pressure over the city.

The Spore Cloud hit the thermal wall.

HISS.

It was the sound of a million microscopic organisms boiling instantly.

The green fog tried to push forward, but the high-pressure updraft caught it and launched it skyward. The spores that managed to touch the heat were incinerated, turning into harmless black ash.

From the inside, the citizens of Bastion looked up. They saw a sky of swirling green death, but it was being held back by a barrier of invisible power. The air inside the city remained clear, though the temperature spiked by twenty degrees.

“It holds!” Iron-Scale shouted, shielding his eyes from the glare of the trench.

“Feed it!” Gorak roared at the lines of Troglodytes and Kobolds. “Do not let it die! Shovel!”

The labor began. It was a ritual of survival.

Scoop coal. Throw. Scoop. Throw.

The Shell-Kin acted as heat shields, standing between the workers and the trench so they wouldn’t burn. The Grey-Fins passed buckets of water to keep the workers hydrated in the sweltering heat.

For six hours, the battle raged.

The Rotting Druid pushed the cloud. Red pushed the heat.

[ EXTERNAL TEMPERATURE: 800°C (PERIMETER) ]

[ CITY TEMPERATURE: 45°C (SWELTERING) ]

The Mud-Skippers were fainting from the heat. The crops were wilting—but they weren’t rotting. Wilting could be fixed with water. Rot was forever.

Red watched the mana cost. The 100x Convection was self-sustaining as long as the fuel lasted, but the coal reserves were dropping fast.

“We have fuel for 12 hours,” Zek reported from the supply line. “If the wind doesn’t change…”

Red zoomed out to the Regional Map.

He saw the source of the wind. A massive Spore-Tower grown by the Druid ten miles South, pumping the cloud North.

“Defense is working,” Red analyzed. “But I can’t burn coal forever. I need to break the source.”

He looked at his [ CAUSALITY CHARGE ]. 900% left.

He looked at his roster. He needed a strike team. Someone who could survive the rot long enough to plant a bomb.

The smoke from the coal trench was turning the sky violet.

Red hovered over the map. The Green Fog was pushing hard against the thermal dome. The coal reserves were dropping—[ FUEL: 11 HOURS REMAINING ].

The Spore Tower was ten miles deep in enemy territory. In a swamp, ten miles was a two-day march. They didn’t have two days. They had half a day.

“I need a vehicle,” Red muttered. “Something sealed. Something amphibious. Something tanky.”

He looked at Old-Shell, the massive Iron-Back Tortoise.

[MIRACLE]

Red commanded. “Target Old-Shell.”

“Concept: Hermetic Seal – Bio-Submersible.”

“Output: 100x.”

[ COST: 3,000 DP ]

[ CHARGE REMAINING: 800% (8 STACKS) ]

In the Plaza, Old-Shell groaned. His shell didn’t just harden; the plates shifted. They interlocked with a wet, organic hiss, forming an airtight seal. The gaps around his neck and legs developed thick, transparent membranes of mucus-hardened resin.

He wasn’t just a tortoise anymore. He was a Living APC.

[KRUG,] Red projected.

[THE WALL HOLDS. BUT THE FUEL WILL FAIL. I AM GOING TO WRAP YOU IN A BUBBLE OF CLEAN AIR. YOU ARE GOING SOUTH. INTO THE FOG.]

[FIND THE TOWER. BURN IT DOWN.]

Krug stood up, his armor hot to the touch. “I hear.”

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