The Second Expedition: The Iron March into the Abyss
The return of the First Expedition triggered a frenzy of enthusiasm in Nadaren’s industrial capital. The High Industrial Council saw the Underreach not as a dangerous ecosystem, but as a vast, unmined vault waiting to be broken open. The reports of an "uncanny sensation of being watched" were dismissed as the paranoid superstitions of tired miners playing tricks on themselves in the dark.
Within six months, the Second Expedition was launched. This was not a small party of surveyors; it was a full-scale military and industrial invasion.
Over twelve hundred men marched toward the subterranean gap. The vanguard consisted of veteran Nadaren infantry clad in charcoal-grey trenchcoats and light leather armor, armed with heavy bolt-action rifles and long, gleaming bayonets. Behind the infantry marched hundreds of combat engineers, tunnelers, and indentured laborers, hauling heavy iron gear, pneumatic rock drills, black-powder kegs, and timber beams to shore up the caverns. The objective was absolute and unyielding: clear the main transit shafts, erect fortified palisades, establish permanent mining outposts, and begin funneling the deep ore up to the surface foundries.
For the first three days, the invasion proceeded according to plan. The Nadaren engineers constructed a heavily timbered base camp within the upper caverns, stringing up wire-guarded perimeters and setting up brass-cased carbide arc lamps that cast a harsh, unnatural glare against the jet-black obsidian walls. The roar of pneumatic drills and the concussive thud of blasting charges echoed through the subterranean vaults, shattering the ancient silence of the Underreach.
To the Dokkalfar, however, the situation had fundamentally changed. The noisy curiosity had turned into a direct violation of the Law of the Strongest Link. The surfacers were bringing loud, soot-belching machinery, choking unventilated shafts with black powder smoke, and attempting to claim territories carved directly into the living stone of the Great Houses.
Pragmatism dictated an immediate, absolute response. Weakness could not be shown, and the intrusion had to be eradicated with maximum efficiency and zero wasted effort.
The Night of Pallid Shadows
On the fifth night of the operation, as a heavy grey mist swept in from the subterranean thermal vents, the Dokkalfar struck.
There was no blare of war horns, no honorable challenge, and no warning volley. The attack began in total, calculated silence.
First, the lights died. Dokkalfar mages manipulating umbral sorcery and earth currents quietly severed the copper wiring of the arc lamps and flooded the main encampment with supernatural, light-smothering shadows. The heavy, pressurized steam lines powering the drills were punctured with precision, filling the choked choke-points with roaring white clouds that blinded the Nadaren sentries.
What followed was a masterclass in lethal subterranean warfare:
Enfilades of Silent Fire: From the darkness above, silent mechanical repeating crossbows and spring-loaded wrist devices rained down enfilades of small, needle-like bolts. Every projectile was coated in potent neurotoxins and necrotizing agents harvested from Underreach fauna. Soldiers collapsed in mid-stride, their throats constricting before they could pull the triggers of their rifles or sound an alarm.
Pallid Shadows in the Ranks: Dokkalfar blade dancers—wearing lightweight, sound-dampening armor and wielding razor-sharp dark-alloy spring-loaded wristblades—danced through the panic-stricken ranks of the infantry. Moving with unnatural, fluid speed, they bypassed the heavy bayonets entirely, slicing through leather armor seams and throat-guards before vanishing back into the pitch-black shadows, leaving entire squads tumbling down in their wake, poison and blood loss taking those who survived the blade's passage.
Visceral Arcane Ruin: Dokkalfar elementalists manipulated the very structure of the cavern floor. Jagged spikes of raw obsidian erupted beneath the artillery caissons, shattering the supply wagons. Volcanic gas vents were redirected directly into the timbered barracks, suffocating entire squads in their cots before they could reach their weapons.
By the time the remaining officers attempted to organize a defensive phalanx, the perimeter had already ceased to exist. Bayonets were useless against enemies who never stood still; heavy rifles fired blindly into the dark, their muzzle flashes illuminating only the bloody, fallen bodies of fellow soldiers.
Out of the twelve hundred soldiers, engineers, and builders who had marched into the cavern system, barely a dozen managed to stumble out of the shaft mouth the following afternoon. They were battered, bleeding, and driven half-mad by terror, their uniforms torn and their eyes wide with unyielding shock.
Aftermath and Council Paralysis
The surviving dozen returned to Nadaren with a tale that defied belief in the smoke-choked council halls of the surface world. They spoke in hysterical, broken sentences of pallid phantoms that moved without making a sound, of cold eyes gleaming in darkness that absorbed the light of flares, and of an entire army dismantled in a matter of hours without the enemy ever revealing a formal battle line.
The High Industrial Council was thrown into utter turmoil:
Furious Demands for Retaliation: The hawks and military industrial cartels roared for vengeance. The industrial power of Nadaren had been insulted; thousands of sovereigns worth of military and industrial equipment had been lost, and the vast mineral reserves of the Underreach remained tantalizingly out of reach. Speeches echoed through the iron-columned chambers demanding that artillery batteries be brought to the shaft mouth and the entire subterranean network be scorched with fire and gas.
The Paralysis of Reality: Yet, beneath the political posturing lay a terrifying truth that no general could ignore. Conventional military tactics—massed rifle volleys, ironclad warship broadsides, and heavy artillery—were completely useless in a lightless, labyrinthine abyss of volcanic glass. To send another force into the dark was to feed Nadaren’s young men into a subterranean meat grinder managed by predators who owned the shadows. And further, beyond this, the fact remained that no one knew who struck the expedition, ravings of 'pallid shadows', of mist in the dark, from men broken by fear, offered the Council no tangible enemy.
The Stance of the Underreach: Deep beneath the earth, the Dokkalfar gave no further thought to Nadaren's political outrage. The broken timber palisades of the Second Expedition were dismantled for scrap, the iron rifles were recycled into silent clockwork springs or trap triggers, and the bodies were quietly reclaimed by the subterranean ecosystem.
The Dokkalfar harbor no hatred for Nadaren, nor do they seek a surface conquest; to them, surfacers are simply another environmental variable to be managed with cold, unsentimental pragmatism. Should the iron-forges of Nadaren attempt a third march into the dark, the Great Houses of the Obsidian Underreach will simply draw their poisoned blades, step into the shadows, and defend their home once more.