Chapter 503

They slowed down.

Not because the labyrinth suddenly became more dangerous, and not because the runic golems finally managed to corner them, but because their bodies reached the limit of what could be forced forward without real rest.

They hadn’t eaten properly. They hadn’t slept. They hadn’t even taken a moment to truly sit down and let their muscles recover. Their only pauses had been brief surfacing breaks to stabilize their breathing and mana flow before diving back into the water. The Meditation rune kept their minds sharp and their mana circulating cleanly, but it couldn’t erase physical fatigue. It couldn’t mend strained tendons, aching joints, and muscles that had been fighting water pressure for hours on end.

Even with Wind Overdrive thinning the resistance, swimming nonstop through a drowned labyrinth while engaging monsters designed for underwater warfare wore them down in a way no land battle ever could.

Their pace had been faster than in the first and second sections… But the third section was far larger.

The corridors stretched endlessly, branching into massive submerged halls and winding passages that felt less like a dungeon and more like a drowned city. The water pressure shifted constantly, subtle currents tugging at their bodies, trying to pull them off course. The ceiling hung low above them in some areas and then suddenly opened into vast cathedral-like spaces where the darkness swallowed everything beyond their immediate vision.

Still, they pressed forward. Until Ludger slowed. Then stopped.

He hovered in the water, boots barely touching the stone floor, body drifting slightly with the current as his eyes lost focus. Seismic Sense expanded outward in long, invisible waves, his awareness pushing ahead through walls, pillars, and submerged chambers.

Viola noticed immediately. Ludger raised a fist. Signal to submerge.

They dipped beneath the surface and regrouped beneath the ceiling. Water streamed off their armor and clothes as they clung to the slick stone ledge, breathing hard.

When Ludger turned back to them, there was something different in his expression. Not tension. Not urgency. Recognition.

“I found the end,” he said.

For a moment, neither of them reacted.

Then Viola let out a long breath she hadn’t realized she was holding.

“…Finally.”

Luna stepped closer. “Anything else?”

Ludger shook his head slowly.

“Just water,” he said. “A lot of it. The final chamber is completely submerged.”

Viola grimaced. “Of course it is.”

The sound of distant currents rolled through the corridor like a slow, endless heartbeat. The labyrinth felt heavier here, denser, as if the entire structure was pressing down on them from all sides.

The end was close.

And if Lucius had truly come this far… Then he was either waiting at the end of the drowned path… Or he had already been swallowed by it.

Ludger looked down the corridor toward the pressure-heavy darkness and then back at them.

“We rest here,” he said. “A couple of hours. Then we push for the final chamber.”

Viola blinked at him. “How?”

She gestured around them with one hand, droplets flying off her glove.

“We’re surrounded by water. There’s no floor up here. No ledge big enough to sleep on. No place to even sit without getting dragged back under.”

Ludger didn’t answer. He just did what he always did. He surprised everyone.

Earth magic flared softly, and the stone beneath them responded. A mass of compacted earth rose from the floor like a slow-moving beast, swelling into a thick block that pushed upward through the water.

It kept rising. When it reached the bottom and the surface zone, bridging the flooded space from below to just under the air pocket, Ludger stopped the ascent. Then he split it.

A clean seam opened through the earth block, and he shoved outward. The stone separated into three broad wedges, pushing the water away in three directions. The displaced water surged around the edges, but the center held.

A dry pocket formed. Not a fragile bubble. A solid, carved-out chamber of earth, large enough for all three of them to stand and actually breathe without being pressed against slick stone.

Viola stared at it.

“…Of course,” she muttered.

As if that wasn’t enough, Ludger manipulated the earth again, smoothing surfaces, reinforcing corners, and thinning the layer until it became translucent, clear enough to see the surrounding flooded corridor beyond it. Not glass, but something close. A mineral lattice aligned by mana, letting light and shadow pass through without weakening the structure.

Luna touched the wall and raised an eyebrow. “Transparent earth.”

Ludger didn’t respond. He was already adding the final layer.

He traced runes along the sides, reflective, distorting glyphs that bent attention and light away from their resting space. Not true invisibility, but the same principle as Water Mirror: make the area difficult to focus on, difficult to notice, difficult to remember.

From outside, it would look like nothing but water and stone. Their presence would blur into the background. Almost impossible to spot unless someone already knew where to search. Ludger stepped back and examined the work for a heartbeat.

“Now,” he said, finally, “we can rest.”

Viola sank down onto the dry floor like her legs had been waiting for permission to fail.

Luna sat more carefully, back to the wall, eyes still alert, but even she looked relieved.

And for the first time since entering the third section, the labyrinth didn’t feel like it owned the space around them. Ludger had carved out a small piece of control. Just enough. For the final push.

Viola sat with her back against the dry earth wall, knees pulled up, sword resting across her lap. The moment the adrenaline bled out, the silence felt too loud. The faint roar of water outside their shelter became a constant reminder of where they were.

She glanced at Ludger.

“Do you think there’ll be a guardian in the final chamber?” she asked.

Ludger didn’t look up immediately. He was checking the reflective runes one last time, making sure the distortion held from every angle.

“Probably,” he said. “That’s the point of a final chamber.”

Viola nodded slowly, then opened her mouth again.

Ludger turned his head slightly. “Which is why we’re resting. And why you shouldn’t spend this chance talking.”

Viola blinked, then huffed. “Right. Sorry. I forgot you can turn off being human whenever it’s inconvenient.”

Ludger’s expression remained flat.

She shrugged, then let her gaze drift to the translucent wall where the flooded corridor distorted like a living mirror.

“…I’m not as composed as you,” she admitted after a moment, quieter now. “This is my first time facing a labyrinth guardian.”

Ludger finally sat down across from her, posture relaxed but alert.

“It’s my first time too,” he said.

Viola stared at him. “No. That can’t be true.”

“It is,” Ludger replied evenly. “I’ve checked labyrinths. I’ve run sections. I’ve fought things inside them.”

He paused, eyes steady.

“But I’ve never pushed like this. I’ve never tried to clear one all the way. Not seriously.”

Viola frowned, trying to reconcile that with everything she’d seen him do in the last several hours, how he’d moved through monsters like they were problems on a list.

Ludger shrugged slightly.

“I usually had other priorities,” he said. “And most labyrinths don’t reward overextending. They punish it.”

The water outside surged softly, as if the labyrinth itself had heard the conversation and didn’t appreciate being discussed like a hurdle.

Viola exhaled, gripping her sword a little tighter.

“Great,” she muttered. “So we’re both new.”

Ludger’s mouth twitched, almost a smile.

“Then rest,” he said. “We’ll be new and functional. That’s better than experienced and exhausted.”

Eventually, something moved outside.

A heavy silhouette slid through the flooded corridor beyond their translucent earth wall, its outline distorted by currents and the reflective runes Ludger had layered along the sides. Even through the warped view, the shape was unmistakable, broad shoulders, segmented plating, pulsing lines of mana beneath a stone shell.

A runic golem.

It drifted closer, propulsion arrays flaring in slow, controlled bursts as it patrolled along the corridor.

Viola’s body tensed immediately. She shifted into a fighting stance without thinking, sword angled low for a quick draw. Luna’s knives appeared in her hands, her posture flattening into that smooth, predatory readiness she always carried when danger entered the room.

Ludger didn’t move. He just watched.

The golem approached their position and slowed, its head turning slightly as if tasting the water. For a moment, it almost looked like it was searching. Its arms adjusted. Spear segments flexed. The core brightened and dimmed in a slow pulse.

Viola held her breath. Luna didn’t blink.

Then the construct drifted a little farther, close enough that they could see the runes carved into its plating like veins. It rotated once, scanning, and for a heartbeat it seemed like it might stop and face directly toward their shelter.

Ludger raised two fingers. A sharp signal.

Quiet.

Viola’s jaw clenched. Luna went perfectly still.

The golem hesitated… then continued past them without locking on. It didn’t turn. It didn’t attack. It simply resumed its patrol, sliding into the darkness as if the space they occupied didn’t exist.

Only when the shadow disappeared did Viola exhale.

Ludger spoke quietly. “It can’t sense us.”

Viola frowned. “Why not?”

“The water down here is rich in mana,” Ludger explained. “Too rich. It blurs signatures. Makes bodies feel like background noise unless you’re broadcasting.”

He tapped the translucent earth wall lightly. “The reflective runes help too. They bend attention and distortion. But the mana saturation is doing most of the work.”

Luna’s eyes narrowed. “So how do they track targets?”

“Movement,” Ludger said. “They can’t read you like a mage does, but they can read pressure changes. Currents. Displacement. Anything that disturbs the water.”

He looked at both of them.

“Which is why,” he added, “once we’re back underwater, we move clean. No thrashing. No panic. No wasted motion.”

Viola nodded slowly.

Because now she understood.

In this section, stealth didn’t mean hiding your mana.

It meant hiding your

existence

in the water itself.

The silence returned after the golem drifted away, but it didn’t feel restful anymore.

It felt like the labyrinth was breathing around them—slow currents sliding past their shelter, distant stone shifting, patrol patterns continuing as if nothing had happened. The longer Ludger sat there listening, the more the conclusion settled into place.

They hadn’t found a single trace of Lucius in the third section.

No gear scraps. No broken runes. No blood. No discarded supplies. Nothing lodged in cracks or caught in currents.

Only that cup from earlier—weeks-late and far above.

Which meant Lucius hadn’t lingered here.

He’d pushed through.

Or someone had pushed him through.

Either way, the most likely explanation was the simplest one: Lucius reached the final chamber.

Reached the guardian.

Viola stared at the dark water beyond their translucent wall, jaw tight.

“If he did,” she said quietly, “what are the chances he soloed it?”

Ludger didn’t answer immediately.

Because she’d asked the right question.

Under normal circumstances, labyrinth guardians weren’t “hard fights.” They were walls. The kind that forced parties to coordinate perfectly or die in minutes.

“None,” Ludger said finally. “Under normal circumstances, his chances are basically zero.”

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