Extra Survival Guide to Overpowering Hero and Villain-Chapter 257: Dungeon X

They returned to Rivergate without trouble.

The gates opened as usual.

Guards watched them pass, but asked no questions.

At the guild, Fenric gave a short update.

"Second confirmation," he said. "Movement reacted to our presence. No emergence. No chase."

The clerk nodded and wrote it down.

"This is no longer a passive dungeon," he said. "You did right by not forcing contact."

The team stepped aside after the report.

Borin set his shield down.

"It's smart," he said. "Too smart."

Mira agreed. "It's measuring distance. Timing. Numbers."

Liana crossed her arms. "Which means it will choose when to move."

Fenric nodded. "And where."

They did not plan a return date.

Instead, Fenric made a decision.

"We stop entering for now," he said. "If it comes out, we respond outside. If it stays in, we gather more people."

No one disagreed.

They separated again.

Borin stayed at the guild, talking to other shield-bearers.

Mira went to request permission for perimeter traps near the dungeon road.

Liana returned to training, focusing on uneven ground and quick turns.

Fenric went back to the inn.

He reviewed the map once more.

He added one final note near the wide chamber.

Response behavior confirmed. Likely intelligent.

He closed the book and put it away.

The rest of the day passed quietly.

No alarms.

No messengers.

No tremors felt inside the city.

That night, Rivergate slept normally.

The next morning, Fenric woke to the sound of merchants setting up stalls.

Life continued as usual.

At midday, a guild runner arrived.

Not urgent.

Just cautious.

"Fenric," the runner said. "Dungeon watch reports nothing new. No surface activity."

Fenric nodded. "Good. Keep watching."

The message was sent.

The watch remained.

Days passed.

The dungeon did not move.

But no one believed it was gone quiet again.

The quiet did not last forever.

On the fifth day, Fenric was at the guild when the first sign came.

Not a runner.

Not an alarm.

A vibration.

Light.

Short.

Enough to rattle cups on the counter.

Everyone felt it.

The guild hall went silent.

Fenric stood up at once.

"Direction?" he asked.

A guard at the door answered. "South road. Dungeon side."

Fenric did not hesitate.

"Notify Borin. Mira. Liana. Standard alert, not full panic."

The clerk was already sending runners.

Within minutes, the streets near the south gate were cleared.

Merchants pulled back.

Guards formed lines.

Fenric arrived at the gate as Borin joined him, shield already strapped.

"Single tremor?" Borin asked.

"Yes," Fenric said. "Not an attack. A signal."

Mira arrived next, carrying a small pack.

"Traps along the road are untouched," she said. "Nothing crossed the perimeter."

Liana joined last.

Calm.

Focused.

They waited.

Minutes passed.

Nothing emerged.

Then the ground trembled again.

Stronger than before.

Longer.

Dust fell from the road stones.

This time, everyone felt it clearly.

Guards tightened formation.

No one ran.

Fenric raised his hand.

"Hold positions," he said. "Do not advance."

The tremor stopped.

Silence returned.

Then a sound came from the dungeon road.

Stone scraping stone.

Slow.

Heavy.

Something was moving near the entrance.

Mira whispered, "It's close. Very close."

Fenric nodded.

"But still inside."

They waited.

The sound stopped.

No creature appeared.

No shadow crossed the road.

After several long minutes, the pressure eased.

Guards relaxed slightly, but did not stand down.

Fenric exhaled slowly.

"It's testing the surface now," he said. "Not just us."

Borin looked toward the road.

"If it comes out, it won't rush."

"No," Fenric agreed. "It wants control."

A messenger arrived from the watch post.

"Dungeon entrance remains intact," he reported. "No breach. No visible entity."

Fenric nodded.

"Good. Maintain watch. Double shifts."

The order went out.

By evening, the city was tense but calm.

No further movement followed.

Fenric returned to the inn late.

He did not sleep right away.

He opened the map again and added a new note.

Surface tremor detected. Entity approaching boundary.

He closed the book.

Whatever lived below was no longer just reacting.

It was preparing.

And now, so was Rivergate.

Morning came with heavy clouds.

Rivergate woke slowly.

Shops opened late.

Guards stayed alert.

Fenric was already up.

He ate little and went straight to the guild.

The hall was busy.

More than usual.

Adventurers talked in low voices.

Maps were spread out.

Orders were being written.

The guild master was present.

Fenric joined Borin, Mira, and Liana near the side table.

"No movement overnight," Mira said. "No tremors after sunset."

Borin nodded. "But the guards heard stone shifting deep below. Too deep to feel."

Liana asked, "Any surface cracks?"

Fenric shook his head. "Nothing yet."

The guild master approached.

"You four have the most contact with this dungeon," he said. "Give me your assessment."

Fenric spoke clearly.

"It is intelligent," he said. "It reacts to presence. It tests limits. It avoids exposure."

The guild master listened.

"So it may choose when to emerge," he said.

"Yes," Fenric replied. "And it will pick a weak moment."

The guild master made a decision.

"We fortify the south road," he said. "Barricades. Signal posts. Heavy teams on standby."

Orders went out at once.

Guards moved.

Carpenters were called.

Stone barriers were placed along the road.

By midday, the south gate looked like a defensive line.

Fenric and his team walked the perimeter.

Mira checked trap placements.

"All working. Hidden. Trigger-ready."

Borin tested the ground with his heel.

"Stable for now."

Liana scanned the area.

"Good space to fight. Bad space to retreat."

Fenric nodded. "Then we hold, not chase."

They returned to the gate and waited.

The day passed slowly.

No tremors.

No sounds.

As evening came, Fenric felt it.

Not through the ground.

Through pressure.

Low.

Wide.

Steady.

He raised his hand.

"Everyone stay ready," he said quietly.

The guards stiffened.

Then, far down the dungeon road, dust rose.

Not from collapse.

From movement.

Something large shifted inside the entrance.

Still hidden.

Still waiting.

Fenric did not draw his bow.

"Not yet," he said.

The pressure faded after several minutes.

No breach followed.

Night fell.

Torches stayed lit.

Watch rotations doubled.

Fenric stayed near the gate.

Whatever was below had reached the edge.

The next move would not be a test.