Chapter 130: The Thunder Technique
"This isn't working."
At this rate, there was no telling how many more of the things were left. These larvae — the ones with the infant faces — weren't ordinary bugs. They weren't even ordinary evil. They were something in between, half-physical and half-wrong, the kind of thing that didn't follow the rules fire was supposed to enforce.
Like the arms back in the corridor, ordinary flame did nothing.
And their numbers were staggering. Every attack Marcus threw got swallowed before it could reach whatever was at the core of the Hollow Mother. He was fighting the surface of an ocean.
He'd been saving this for exactly this moment.
A grenade appeared in his palm.
Not a standard-issue fragmentation grenade. This one had been custom-built for him by a former Army EOD specialist named Reyes — a woman who'd gone off the grid after her third deployment and now lived in the New Mexico desert making things for people like Marcus. The casing was thicker than regulation, slightly wider, and every inch of its surface had been inscribed with binding sigils in red oxide paint. It looked like something that belonged in a reliquary as much as a weapons locker.
Marcus had gotten the idea from an old demonology manuscript — the kind that circulated in photocopied packets through certain underground networks. The text described a 19th-century exorcist who'd figured out how to combine black powder with a specific consecration formula, creating what he called a Thunderfire Charge — a weapon with catastrophic destructive force against non-corporeal entities.
The method had been lost. The manuscript's author mourned it openly, writing that the craft of fighting evil had gone soft and forgotten its teeth.
As for the internal version of the technique — the kind where a practitioner generates the force from within their own body — the manuscript noted that no one had been capable of that for four or five centuries. Maybe longer.
When Marcus read about the external version, something clicked.
Since his spiritual energy had been amplified — first in the pit beneath the farmhouse in West Virginia, then again in the flooded church in Louisiana — he'd been able to push it outward, into weapons, into objects. The problem was that the transfer was imprecise. Bladed weapons got a boost, sure, but the real destructive compression only happened through his fists. A punch could compact the energy into a point. A blade just spread it thin.
But an explosion was the fastest possible release of force across the largest possible surface area.
If he could saturate the grenade with his energy before detonation — pack it into every millimeter of the casing so it was distributed perfectly throughout the metal — then the blast wouldn't just be a concussive wave and fragmented steel. Every fragment would carry a payload. Every piece of shrapnel would hit like a consecrated weapon.
He'd called it, half-ironically, the External Thunder Technique. The full name — Seven Wounds Annihilation — was less ironic. That part was accurate.
Marcus moved fast, flooding the grenade's casing with his energy, feeling it push through the metal and settle into an even distribution across the entire surface. An invisible membrane of charged force wrapped the device like a second skin.
He faced the Hollow Mother — her form churning with larvae, her mass surging toward him — and he pulled the pin.
"External Thunder Technique — Seven Wounds Annihilation!"
The custom fuse was short. Reyes had trimmed the detonation window down to just over a second. The grenade spun in his palm as it ignited, throwing off a high whine like a power tool at full speed.
Marcus drove his fist forward.
The explosion hit the cave like a freight train derailing inside a oil drum.
The fireball was a deep, saturated orange — the color of something burning that wasn't supposed to burn. It lit the entire chamber in one violent flash, throwing shadows in every direction simultaneously. The shockwave expanded outward in a perfect sphere, compressing the air, the rock, the soil, the darkness — everything — in a single punishing instant.
The sound wasn't just loud. It was obliterating. Every chant, every thin infant cry, every droning note of the Hollow Mother's presence was erased. The white-robed figures on the cave walls simply ceased. The chanting stopped mid-syllable, as if someone had yanked a plug from the wall.
The aftermath: rock walls cratered. Smoke hanging like a curtain. The smell of burning sulfur so thick it was almost solid.
And the larvae — every last one — gone.
Marcus staggered.
The shockwave had passed through his armor like it wasn't there, rattling his internal organs hard enough that his self-healing kicked in automatically, stitching the microdamage before he even consciously registered it. But the deeper damage — the spiritual damage — was something else entirely.
His energy had been woven into every inch of that grenade casing. When the casing fragmented, his energy fragmented with it. It was like having a part of his mind detonated. Like his focus had been put through a wood chipper.
Vertigo slammed into him. He swayed, planted one foot wide, and held position.
Two seconds. Just breathe.
He'd run the math on this beforehand. His total capacity could sustain a maximum of five of these techniques before he ran completely dry. Each one fractured his concentration and took something from him that didn't come back quickly. The technique was devastating but the cost was real — which was why he'd named it after the Seven Wounds Principle: the weapon that destroys the enemy destroys the wielder in equal measure.
He looked up.
The Hollow Mother's iron shell lay on the cave floor, cracked open like a cast-iron skillet dropped from height. The black-red flesh inside had been scorched almost completely — the tunneled, honeycomb surface of her face smoothed over by the heat, the holes sealed shut.
But she wasn't done.
The blackened flesh began to move. Slow at first — a tar-like seeping through the fractures in the broken statue — then faster, pooling on the cave floor in a spreading dark stain.
Marcus threw a fistful of his remaining binding papers onto the pool.
They caught fire on contact and burned the outer edge of the mass back — but there was more coming. Far more. Especially from the face cavity, where dark flesh and fluid gushed in a continuous stream like a burst pipe.
The pool thickened. It rose.
It shaped itself.
What emerged from the floor of the cave was enormous — a massive, segmented form like a caterpillar scaled up to the size of a city bus, black and wet and riddled with holes. Its head was still recognizable: the recessed, concave cavity of the Hollow Mother's face, now twenty times larger, a gaping depression surrounded by dark flesh. Beneath its body, dozens of children's arms had emerged as legs, pale and small, moving in terrible unison.
The thing had her face. The thing was her face. Just bigger now. Freed from the iron shell, finally in a body that fit.
Marcus had to admit it.
I underestimated her.
He'd hit her with her own reflected curse. He'd shattered her focus with the Saint Michael carving. He'd detonated a consecrated explosive at point-blank range inside her cave.
And she was still coming.
The caterpillar filled the passage, its massive jaw-cavity opening wide, and it moved toward him with the slow, inevitable confidence of something that had never learned what it felt like to lose.
One more shot. If this doesn't work, I'm out.
"Double Thunder — both barrels!"
Two grenades, both prepared, both saturated with his energy. Marcus hurled them toward the creature and ran.
The caterpillar lurched to a stop as the grenades hit — then the explosion came, and it kept coming, surging through the flames. Faster than before. It had learned from the first blast. It wasn't stopping this time.
That one was a fake-out. Normal detonation, no spiritual charge. Just enough to buy three seconds.
The passage shook. From the ceiling, long arms reached down — female, pale, grasping — trying to seize him, slow him down, pin him in place. His armor took the grab and his momentum tore him loose, the arms dragging uselessly off his shoulders as he pushed through.
Behind him he felt it — the displacement of air, the pressure drop, the specific wrongness that meant something very large and very angry was directly behind him.
Marcus spun.
The Hollow Mother's caterpillar-face was three feet away, jaw-cavity yawning open, the holes in the flesh pulsing.
He slammed both spinning grenades directly into the center of the concave face.
"This one's real."
The impact knocked him back five steps. He hit the cave wall with his shoulder blades and stayed there, watching.
The roar came. The orange light came. The smoke came.
Then silence.
The kind of silence that means something's over.
Marcus pushed off the wall, blinked the afterimage out of his eyes, and looked at what the double-charge External Thunder Technique had left behind.
The smoke began to clear.
[Author's note at the end of the original chapter: The author notes that a small fire broke out in their building while writing this chapter — the hallway smelled of burning rubber, but everyone was okay. A reminder to stay safe with heating appliances in winter.]
(End of Chapter)
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