Chapter 77: The Monolith’s Last Breath

The air inside the main pressure valve chamber tasted of copper, ozone, and sulfur. It was a suffocating, hyper-dense cocktail of elements that burned the lungs with every inhalation, forcing Rangga to fight for every breath as he dragged his battered body past the towering bulkhead. His left arm hung uselessly at his side, the skin turned the ash-grey color of dead volcanic slag, completely calcified and devoid of any human flexibility. Yet, despite the agonizing weight of his ruined limb, his eyes remained locked on the massive, interlocking steel gears of the manifold dead ahead.

"Rangga! Hold up—damn it, just wait one second!"

Arung stumbled through the narrow access hatch behind him, his boots skidding across the slick, condensation-soaked flooring before he slammed hard into a rusted pipe junction. He caught himself with a sharp intake of breath, his face ghostly pale beneath a fresh layer of coal dust and dried blood. A dark, ugly stain was rapidly spreading across the front of his tactical jacket, soaking through the improvised field dressing he had slapped over his torn abdomen. His knees buckled slightly, but he forced himself upright, glaring at Rangga with a mixture of fury and absolute desperation.

"You're bleeding through the bandage, Arung," Rangga said, not slowing his pace as he reached out with his good hand to slap the heavy emergency release lever. "If you keep moving like that, your insides are going to spill out onto this floor before we even reach the valve."

"Let them spill," Arung gasped, coughing up a wet, crimson splatter that hit the steel grating with a sickening tink. He leaned heavily against a massive hydraulic piston, clutching his side as his breathing hitched violently. "If we don't hit this bypass right now, Thorne is going to blow every single structural support between here and the ridge. I heard the transmission, Rangga. The bastard isn't trying to extract energy anymore. He’s deliberately fracturing the deep fault lines to force a massive blowout."

"I know what he's doing," Rangga replied, his voice dropping into a harsh, grating whisper as his fingers brushed the ice-cold surface of the primary pressure lock. "The whole mountain is vibrating. Can't you feel it? It's like standing directly on top of a beating drum. Every second we waste arguing, the internal pressure climbs another thousand psi."

"Then do it," Arung urged, pushing himself away from the piston with a ragged groan, his boots sliding half an inch in his own blood. "Open the valve. Let the steam out before the entire vault collapses on top of our heads."

"It's not that simple," Rangga snapped back, spinning on his heel to face him, his eyes flashing with a sudden, intense fury. "This isn't just a mechanical pipe you can turn with a wrench. The entire valve is fused to the monolith's core network. If I force it open without balancing the thermal draw, the back-blast will incinerate everything within a mile radius—starting with us."

"And if you don't open it, Thorne blows the charges and we get buried alive under ten million tons of burning rock!" Arung shouted, his voice cracking as he lunged forward, grabbing the front of Rangga’s tattered vest with trembling, blood-soaked fingers. "Look at me, Rangga! Look at my hands! I am already dying. You're already dying. What does it matter how we go, as long as we take Thorne's pipe dream down with us?"

Rangga stared down at Arung’s shaking hands, then up into the fever-bright eyes of his oldest surviving companion. The skin beneath Arung’s eyes was bruised a deep, bruised purple, and his lips were cracked and bleeding from severe dehydration and shock. There was no argument left in him, only the desperate, hollow shell of a man who had nothing left to lose.

"If I open this manually," Rangga said slowly, every word tasting like ash in his mouth, "the seismic shockwave is going to travel straight up my arm. The calcification... it’s going to spread. It won't just stop at my shoulder."

"Then you turn to stone," Arung whispered, his grip tightening convulsively on Rangga’s vest despite the fresh agony it caused his abdominal wound. "Welcome to the club. We're all monuments to bad decisions down here anyway."

Before Rangga could answer, a deafening screech of tortured metal echoed from the upper service shaft, followed immediately by a sharp, staccato burst of automatic gunfire that ricocheted wildly off the stone walls above them. Sparks showered down like a cascade of dying stars, illuminating the smoke-choked cavern in brief, blinding flashes of white and blue.

"They're in the upper gantry," Arung hissed, releasing Rangga’s vest and instinctively drawing his sidearm with a trembling hand, though the weapon was caked in dried mud and completely jammed. "Thorne's security detail must have found the maintenance bypass. They're trying to secure the primary lines before we can reach the manual override."

"They're too late," Rangga growled, turning back to the massive iron wheel of the pressure valve and planting his good boot squarely against the reinforced housing. "They want the mountain's power? I'll give them all of it at once."

"Wait—Rangga, look at the telemetry screen on the wall!" Arung pointed frantically toward a flickering digital display wired directly into the rock face. "The pressure reading isn't just rising—it's off the scale! Thorne isn't just setting charges; he’s initiated the automated override sequence from the summit deck!"

The digital numbers on the screen blurred into an angry, flashing crimson: 98,500 PSI... 99,000 PSI... CRITICAL THRESHOLD BREACHED.

"He’s going to blow the whole peak," Arung breathed, his weapon slipping from his numb fingers and clattering loudly against the metal grating. "We've only got seconds."

"Get behind the blast shield, Arung!" Rangga roared, throwing his entire body weight against the massive iron wheel of the valve.

With a sound like a collapsing cathedral, the rusted locking pins sheared away in a shower of sparks, and the wheel began to spin with terrifying speed. A deafening hiss of superheated steam erupted from the core seams, instantly filling the chamber with a blinding wall of white vapor that scorched the skin and drowned out all other sound. Through the blinding haze, Rangga could see the ash-grey calcification crawling rapidly up his neck, locking his jaw and turning his blood to stone, but he refused to let go of the turning wheel as the mountain screamed beneath their feet.