Chapter 168: Operation Deep Lantern
The old mill entrance opened before noon.
Atlas engineers found it beneath the western foundation, hidden behind a collapsed grain storage room and nearly three meters of packed soil. The original stairwell had been deliberately filled with stone, timber, and lime mortar, but age and underground movement had cracked the seal enough for air to escape through the floorboards. Once the mill was evacuated and the surrounding ground secured, the engineers removed the debris layer by layer rather than risk dropping the entire structure into the tunnel beneath it.
Marcus arrived as the final stone block was lifted aside.
Cold air rose through the opening, carrying the same damp mineral smell they had encountered beneath the watchtower. Portable lights revealed a narrow stairway descending between fitted stone walls. Unlike the tower entrance, however, the steps remained mostly intact. Old iron hooks lined one side, and faded symbols had been painted above the archway before someone covered them with plaster.
Sergeant Cole crouched beside the opening and checked the gas detector. "Oxygen is good. No dangerous concentration near the entrance. The tunnel runs south for at least forty meters before turning east."
"Connection to Millhome?"
"Likely. Selvar’s map places an old route between the mill and the northern water channel."
Marcus looked toward the mill’s abandoned machinery. The wheel outside continued turning slowly in the river, making the building creak with every rotation. Until that morning, the local residents had believed the mill’s cellar ended beneath the storage room.
They had been living above an access road into the Underroad for generations.
Tomas stood nearby with the first security squad. "We can clear it today."
"We clear the upper section," Marcus said. "No advance beyond the first major junction until the watchtower route reaches Millhome."
Tomas nodded.
Opening a second entrance offered several advantages, but dividing the underground force too early would create two isolated teams. The Collectors already possessed side tunnels Atlas could not map. Until radio relays connected both routes, each entrance had to be treated as a separate front.
Rolf leaned over the opening and shone his light down the steps. "Do you think every old building in this region has a secret tunnel?"
Captain Garran, who had accompanied Marcus from the forward base, answered before anyone else. "No."
Rolf glanced at him.
The captain pointed toward the abandoned farmhouse beyond the mill. "That one probably has two."
Nobody laughed.
The possibility was too believable.
The first squad descended at 12:17.
Tomas led with two infantrymen while an engineer followed carrying a cable reel and portable relay. Marcus remained above long enough to review the surface preparations. Cedric’s labor crews had begun constructing a timber barricade around the mill site, while Atlas positioned one M939 truck across the road as a mobile barrier. A medical shelter stood beside the river, and a helicopter landing zone had been marked in the field east of the building.
The second entrance would not merely serve as an emergency exit.
It would become Forward Site Two.
If the tunnel connected to Millhome as expected, rescued civilians could be brought through the mill instead of climbing the damaged tower route. The river also offered a reliable water source for surface operations, though everything intended for drinking still had to be filtered and tested.
Marcus descended ten minutes after Tomas.
The stairway ended inside a rectangular guard chamber with stone benches along both walls. Rusted spearheads lay beneath layers of dust, and an old wooden door had collapsed across the eastern passage. Atlas soldiers had already moved it aside.
The walls carried carvings.
Most were simple scratches left by later residents, but one image had been cut deeply into the stone above the inner doorway. It showed a circular shape surrounded by six hooked limbs. Beneath it stood a line of small human figures.
Rolf aimed his light at the carving. "That is comforting."
Selvar stepped closer.
He had volunteered to help identify the mill route despite Marcus initially ordering him to remain at the forward base. After his people’s rescue, keeping him above ground had become nearly impossible.
"This symbol was forbidden," Selvar said.
"You recognize it?" Marcus asked.
"Only from stories. The old elders called it the Mouth Beneath."
Rolf stared at the circular figure. "That name somehow made it worse."
Selvar ignored him. "Some believed the Collectors worshiped something below. Others said the symbol warned that all roads eventually led to the same chamber."
Marcus studied the carved human figures. Their arms were raised, but whether in worship, surrender, or terror was impossible to determine.
"Photograph it," he told the engineers. "Then continue."
The mill route proved narrower than the King’s Road but easier to traverse. The floor remained relatively level, and the ceiling showed fewer cracks. Water flowed through a channel beside the wall, moving in the same direction as the river above. Every fifty meters, Atlas installed lights and marked the route with reflective strips.
There were no signs of recent human habitation.
There were signs of Collectors.
Pale shell fragments appeared near several drainage openings. Claw marks scored the lower walls. At one bend, the team found the remains of a small animal wrapped in the same woven fibers used to bind captives.
The animal had not been eaten.
It had been restrained and left beside the passage.
Marcus crouched near the remains. "Testing."
Tomas looked down. "Testing what?"
"Binding strength. Sedation. How long something survives."
Selvar’s expression tightened. "They have always taken animals."
"Did they leave them like this?"
"No."
The Collectors were experimenting.
That possibility carried more danger than simple adaptation. Learning from battle was one thing. Deliberately testing methods on living subjects suggested planning beyond immediate survival.
The team reached the first junction after forty-five minutes.
Three passages branched from a circular chamber. The southern route had collapsed. The northern route climbed gradually toward another sealed surface entrance. The eastern route continued beside the water channel.
Selvar recognized the chamber.
"Mill Junction."
"How far to Millhome?" Marcus asked.
"Two hours before the old floods. Maybe less if the route remains clear."
Tomas looked toward the northern passage. "Where does that go?"
"An inn that burned many years ago."
Another surface entrance.
Marcus marked it for future investigation but ordered the team east.
Communication with the mill remained strong through the first two relays. By the third, stone interference distorted the signal enough to require a second repeater. The route gradually descended toward the water system beneath Millhome, confirming Selvar’s map.
Collector activity increased with depth.
Small shapes moved inside openings but withdrew whenever Atlas lights approached. Twice, the team found fresh scratches crossing the floor ahead of them. The creatures were monitoring the advance without engaging.
Marcus expected that to change once the two Atlas routes connected.
At 15:43, Tomas found the northern water gate.
The structure had once regulated flow into Millhome’s channel. A thick iron wheel controlled a stone barrier, though rust had frozen the mechanism in place. Beyond the gate, the steady movement of the underground stream echoed through a larger chamber.
Selvar stepped through first.
Millhome’s waterwheel stood less than one hundred meters away.
Atlas had established its second route.
The connection transformed the operation.
By evening, engineers had extended power from the mill entrance to Millhome and linked the two radio networks. Supplies began moving underground in both directions. The watchtower route carried personnel and heavier equipment, while the mill route handled medical evacuation, food, water, and fuel for the portable generators.
Millhome became Underground Base One.
The abandoned refuge changed quickly under Atlas occupation. The central square became a command and logistics area. The old classroom served as a medical station. Workshops were inspected and reopened for basic repairs. Soldiers cleared nearby homes, marked unsafe structures, and sealed every side passage too small for regular patrols.
Floodlights illuminated the main lanes.
Radio cables ran between stone columns.
Ammunition crates occupied the former market hall.
The old waterwheel continued turning beside modern generators, linking two eras that had never been meant to meet.
Underroad survivors returned with the second supply group.
Marcus had initially resisted allowing them underground, but the Millhome residents insisted on recovering records, identifying buildings, and helping map routes Atlas would otherwise spend days exploring. They were placed under strict escort and forbidden from leaving the secured perimeter.
For them, returning was not simply operational support.
It was returning home after believing everything had been lost.
Nella entered the classroom and found several slates still arranged along the wall. She stood there for nearly a minute before gathering them into a wooden box. An older man reopened the forge and discovered tools exactly where he had abandoned them. Families moved through houses searching for names, keepsakes, and signs of relatives who remained missing.
Relief and grief occupied the same rooms.
Marcus watched the activity from the central square while Tomas reviewed the defense layout.
"We can hold this position," Tomas said. "Two squads on rotation. One at the western gate, one at the water route. Reserve in the market hall. Engineers are sealing the smaller breaches."
"What about the deep gate?"
"Reinforced firing position thirty meters back. We installed motion sensors along the descent."
"And the broken bridge?"
"Temporary crossing should be complete before dawn. Steel cables anchored on both sides, modular walkway, safety lines. It will support stretcher movement but not heavy carts."
That was enough.
The Hollow Road operation would begin the following morning.
Marcus had wanted two full days of preparation. The creation of the mill route shortened the schedule, but not enough to eliminate the risks. Seven captives had already spent another day below. Every hour increased the distance between them and the holding chamber.
The evening briefing included more than forty personnel.
Two assault squads would enter the Hollow Road. A third would hold the bridge and evacuation route. Engineers would establish relay stations and secure each cleared chamber. The medic team would remain at the holding area until captives were recovered. A reserve force waited at Millhome.
The objective remained limited.
Locate the seven missing civilians.
Recover any additional captives encountered.
Map the outer section of the buried city.
Avoid direct assault on the primary nest unless necessary.
Rolf raised a hand from the rear of the group.
Tomas looked at him. "What?"
"What qualifies as necessary?"
"If Marcus says it is."
Rolf lowered his hand. "That was less specific than I hoped."
Marcus stepped toward the map laid across the old Millhome council table. The known route ended after the Hollow Road’s second guard station. Beyond that point, Selvar’s memory became uncertain.
The buried city began somewhere below.
"The Collectors know we are coming," Marcus said. "They watched both entrances. They observed our weapons, formations, and evacuation route. Expect traps, false retreats, and coordinated attacks."
Several Underroad residents exchanged uneasy looks.
Marcus continued. "We advance only as fast as the relays and fallback positions allow. Nobody pursues a retreating creature into an unmarked side tunnel. Nobody separates from their assigned team. If communications fail, the expedition holds position for ten minutes. If contact is not restored, it withdraws to the last relay."
He looked around the chamber.
"We are not going below to prove courage. We are going below to bring people back."
That ended the briefing.
The first attack on Underground Base One came at 02:13.
Marcus woke to the sound of rifle fire.
He had been resting inside a cleared house near the central square when the alarm spread through Millhome. Soldiers moved immediately toward assigned positions. Floodlights shifted toward the eastern gate while a rapid series of clicks echoed through the lower passage.
Marcus reached the defensive line as the first Collector emerged.
The creature charged through smoke left by a triggered sensor flare. It was larger than the surface hunters, its armored back nearly reaching a man’s chest. Rifle fire struck the joints and mouth, dropping it before it reached the barricade.
Three smaller Collectors followed.
They did not attack the soldiers.
They dragged something between them.
A body.
Tomas shouted for fire to hold as the creatures stopped outside the illuminated perimeter. One released the captive and retreated. The others followed, disappearing down the passage before Atlas could obtain clean shots.
The body moved.
Medics rushed forward under cover.
They dragged a young man behind the barricade and cut the fibers around his wrists. He wore torn surface clothing and carried bruises across his arms and shoulders. His feet were bleeding from walking without shoes.
Captain Garran’s records identified him within minutes.
Emil Varro.
One of the seven missing civilians.
He was alive.
Barely.
The medic stabilized him while Marcus knelt beside the stretcher. Emil’s eyes opened and struggled to focus beneath the white lights.
"You’re safe," Marcus said. "Where are the others?"
The young man swallowed.
His voice emerged as a rough whisper. "Below."
"How far?"
"I don’t know."
"Why did they release you?"
Emil’s eyes widened.
"They didn’t."
Marcus leaned closer.
Emil’s hands began shaking.
"I escaped. I ran through a crack. They followed me. They could have killed me."
The young man looked toward the eastern gate.
"They let me reach you."
Silence settled around the stretcher despite the movement of soldiers and medics nearby.
A message.
The Collectors had returned one captive deliberately.
Marcus had no doubt now.
"What did you see below?" he asked.
Emil closed his eyes, breathing rapidly until the medic warned Marcus to give him time. Several minutes passed before the young man could speak again.
"A road," he whispered. "A great road beneath the caves. Statues everywhere. People chained together. They made us pull carts."
"What was on the carts?"
"Stone. Shells. Dead things."
"How many prisoners?"
Emil shook his head. "Hundreds."
The Underroad survivors nearby went still.
Marcus kept his voice controlled. "Did you see the other six?"
"Yes. They were alive when I escaped."
"What are they digging?"
Emil began crying.
"At first, I thought it was another tunnel. But the wall was metal. Black metal. Bigger than the mill. The Collectors made people strike it with tools."
A buried structure.
Or a sealed door.
"What was behind it?" Marcus asked.
The young man looked directly at him.
"Something spoke."
Rolf stood behind Marcus, unusually quiet.
"What did it say?" Marcus asked.
Emil’s lips trembled.
"I couldn’t understand the words. But every Collector stopped moving when it spoke. Even the large ones."
The medic touched Marcus’s shoulder. The questioning had gone far enough.
Marcus stood and stepped away while they carried Emil toward the medical station.
Tomas joined him near the barricade.
"They returned him to warn us."
"Or to guide us."
The Collectors knew Atlas would question the survivor. They wanted the information delivered.
Hundreds of captives.
A black metal barrier.
Something beyond it commanding the nest.
The enemy was no longer merely defending territory.
It was trying to open something.
Rolf looked toward the eastern passage. "Do we delay the operation?"
Marcus watched the darkness beyond the floodlights.
"No."
"Because the other six are alive?"
"That too."
Marcus turned toward the command area.
"Move the departure forward. Assault teams ready in one hour."
Tomas nodded and began issuing orders.
Millhome came alive around them. Soldiers checked weapons and loaded magazines. Engineers inspected cables, repeaters, charges, and breathing systems. Medics prepared stretchers and emergency air. The reserve squad took positions around the underground base while Selvar and Nella updated the route map using Emil’s description.
Operation Deep Lantern began before dawn reached the surface.
At 03:26, Marcus stood before the repaired bridge with twenty-four Atlas soldiers behind him. The modular walkway crossed the black chasm, secured by steel cables and illuminated by lights mounted along the wall. Beyond it lay the holding chamber they had already cleared.
Beyond that waited the Hollow Road.
Marcus looked back once.
Underground Base One glowed in the distance, a small island of electric light inside the abandoned refuge. Medical teams waited there. Reserves held the gates. The route to the surface remained open through two separate entrances.
Everything Atlas could prepare had been prepared.
The rest would depend on the men going below.
Tomas crossed first.
Marcus followed.
The expedition passed the holding chamber and reached the open eastern exit. Drag marks continued down the floor, accompanied by the deep grooves of heavy carts. Pale fragments lined the passage like broken scales.
A stone marker stood beside the route.
Selvar translated the faded words carved across its face.
"Road of the Hollow Crown."
Rolf examined the darkness ahead. "Does anything down here have a normal name?"
"No," Selvar replied.
Marcus switched his radio to the expedition channel.
"Deep Lantern to all elements. Advance."
The first squad entered the Hollow Road.
Behind them, the lights of Millhome slowly disappeared around the bend.
Ahead, far beneath Greyhaven, something struck black metal with a rhythm that traveled through the stone.
One blow.
A pause.
Another blow.
Then hundreds more joined it.
The sound rolled through the underground network like distant thunder.
The Collectors were digging.
Atlas moved toward them.
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