The world spun, then slammed to a halt. Corvus gasped, a raw, choking sound. His throat was parchment, his tongue lead. He tried to move, but his limbs refused, heavy, unresponsive. A dull thrum echoed, not in the air, but *inside* him. A deep, resonant hum that vibrated in his teeth, his bones, his very marrow. It was like a constant, low-frequency tremor had taken root beneath his skin. He forced his eyes open. Darkness. Absolute, suffocating darkness. No, not absolute. A faint, greenish glow pulsed in the distance. The obelisks. He was still in the cavern. Alone. The memory hit him like a physical blow: the cloaked figure, the sudden, searing pain in his neck, the needle-sharp point, the feeling of something cold and metallic *entering* him. Then blackness. He reached a trembling hand to his neck, just below the collarbone. No wound. No raised skin. Nothing. Yet the buzzing was centered there, a frantic, trapped insect trying to claw its way out of his chest. He pushed up, grunting. His head swam. A wave of nausea hit him. He leaned against the damp rock wall, gasping for air that tasted of dust and cold stone. The buzzing intensified, a frantic, unbearable pressure behind his sternum. And then the voices started. Not voices he heard with his ears. Voices he felt. A thousand tiny currents of energy, flowing through the rock, through the air, through *him*. They were whispers, ancient murmurs, the deep rumble of geological stress, the silent rush of unseen rivers, the slow grinding of continental plates. Before, he had sensed them, a faint song. Now, they were a deafening roar. He clamped his hands over his ears, a futile gesture. The sounds were internal. He felt the minute shifts in the rock face beside him, the slow creep of a fissure half a league away. He felt the faint warmth of a geothermal vent deep beneath the crust. He felt the *life* of the earth, raw and untamed, flooding his every nerve. It was agony. Too much. Too loud. Too real. He choked back a cry, pressing his forehead against the cold rock. The stone sang its secrets into his mind, an overwhelming flood of data, memories, and pure, unfettered power. The obelisks pulsed, their emerald light casting long, dancing shadows. They were quieter now, their hum a part of the chorus within him. He understood, with a terrifying certainty, that the object injected into him was not just a foreign body. It was a conductor. A key. It had opened a gateway. He was no longer just sensing the veins of the earth. He *was* a part of them. Panic warred with a strange, dawning clarity. He pushed himself away from the wall. He needed to escape this place. But how? His original path was surely monitored, if not directly by the cloaked figure, then by whatever forces they commanded. The internal buzzing shifted. It wasn't just pain. There was a direction to it. A subtle pull, like a compass needle drawing him towards something. He looked at the cavern wall. It seemed to shimmer, not visually, but to his new, augmented senses. A weaker point. A hidden fissure. He closed his eyes, focusing on the hum. He felt the rock, felt its grain, its density, its structural weaknesses. It was like seeing with his mind. He pressed his palm against a section of the wall that felt thinner, almost hollow. A faint vibration answered him. A natural fault line, expertly concealed. He pushed, straining. A small crack appeared, then spiderwebbed. Dust puffed out. He pulled his hand back, heart hammering. He hadn't just *felt* it. He had *influenced* it. A terrifying, exhilarating power pulsed through him. No time for fear. He pushed again, harder, channeling the frantic energy within him. The crack widened. Small pebbles tumbled. He grunted with effort, sweat beading on his forehead. The rock groaned, a sound that vibrated not only in the air but in his very bones. A section of the wall gave way, crumbling inward, revealing a narrow, dark passage beyond. The air in this new passage was still, ancient, smelling of iron and damp earth. He squeezed through, scraping his shoulders. The passage was barely wide enough for him, twisting downwards. He stumbled, catching himself on rough-hewn stone. His internal compass pulled him deeper, away from the main cavern, away from the glowing obelisks. Hours blurred into an eternity of crawling, scrambling, and sliding. The passageway snaked through the earth's guts, occasionally opening into smaller chambers. Each one seemed to hold a memory, a resonance. He felt the imprint of ancient hands, the passage of untold time. This wasn't a natural fault. It was a deliberate, forgotten path. The buzzing within him gradually settled, transforming from an agonizing roar into a persistent hum. His mind, battered but adapting, began to process the torrent of information. He could distinguish individual currents, trace their paths. He could sense the cloaked figure, a faint echo, miles away, a malevolent shadow moving across the subterranean currents. He also sensed a profound, structural weakness in the earth above. The Eastern Marches. The Empire's ambitious projects. They were building directly over a network of manipulated energies. The earthquakes were not random. They were carefully orchestrated. The injected object was not just a sensor. It was a link. He was connected to the system. To the obelisks. To the cloaked figure. And perhaps, to the very heart of the tremors themselves. He emerged finally into a cool, starless night. The air was crisp, scented with pine and damp earth. He was at the base of a jagged mountain peak, its silhouette stark against the faint glow of the distant horizon. He didn't recognize it. He was far from where he’d entered the earth. Miles. Dozens of miles. He collapsed onto a patch of moss, panting. His body ached, but the internal buzzing was now a constant, almost familiar companion. His enhanced senses reached out, feeling the pulse of the vast mountain range around him, the distant flow of rivers, the steady beat of the world. But among the natural rhythms, there was a discordant note. A faint, almost imperceptible tremor, growing stronger. It was not a natural tremor. It was *intentional*. And it was moving towards him. Like a hunter closing in. The cloaked figure. They knew where he was. They were using the earth itself to track him. He could feel it, a low, predatory rumble in the distance, a seismic pulse aimed directly at his location. He had escaped the cavern. But he had only just entered the true hunt. And the injected object, the key within him, was ringing like a bell, guiding his pursuers straight to his core. The mountain began to hum. The ground beneath him vibrated, softly at first, then growing in intensity. Rocks loosened high above, scattering down the slope. The hunter was not just coming. The hunter was *unmaking* the very ground beneath his feet.

Echoes in the Veins