Chapter 934 - 720: The Door Made of Mountain Copper - Isekai Adventure in the Dimensional Cube - NovelsTime

Isekai Adventure in the Dimensional Cube

Chapter 934 - 720: The Door Made of Mountain Copper

Author: Confiding Pixie
updatedAt: 2025-09-20

CHAPTER 934: CHAPTER 720: THE DOOR MADE OF MOUNTAIN COPPER

The same thing is happening continuously in this bottomless dark underground.

The news that the Loki Familia is about to arrive has alarmed everyone.

"Lord Baka, Lady Valleta asked me to inform you that thieves are about to invade the domain that you and your great ancestors built. Please go to assist the Tanatos God in combating the impending enemies."

The hooded figure found the person who should originally be the master of this place in the deepest part of the underground, intending to invite him out.

"...The time is already limited, why come to disturb me?"

A man with sunken, dull eyes and a pale, somber expression stopped his continuous chiseling of the wall, sighing in annoyance as he reluctantly stood up and headed toward the stone-hewn hall.

"Hey, are you not planning to make a move?"

Having given several instructions and sent for help, Valleta went to another space, asking her final target.

"Crunch."

That person didn’t respond to Valleta’s question immediately but instead crushed the magic stone she put in her mouth.

Behind her, the remnants of monsters were slowly turning to dust due to losing the magic stone that was essential to their existence.

The red-haired female monster stood with her back to the many corpses sacrificed to her sword, coldly gnawing at the spoils plucked from those remains.

"Let’s go."

After swallowing the broken magic stone, Reveis casually said to Valleta.

"It’s time."

Saying that, Reveis tossed an item to Valleta.

"......!"

Valleta’s pupils shrank as she looked at the item in her hand.

"That’s for you." Reveis didn’t look at Valleta, continuing indifferently, "If you’re afraid, don’t use it. Use it only when you’re near death, and whether it works or not depends on your own fate."

"...Why give me this?" Valleta held the item in her hand, glaring at Reveis, saying, "Could it be that ’she’ has already targeted me?"

"Of course not," Reveis replied without hesitation, "This was a recent decision by ’her’."

"’She’ told me that besides Alya, there’s something else ’she’ wants."

"This is ’her’ investment for that item. You could comprehend it as ’her’ needing more tentacles to achieve her wishes now."

The red-haired female monster spoke unemotionally, making Valleta click her tongue.

"Then what does ’she’ want?"

Valleta asked tentatively.

"I don’t know."

Reveis replied with that answer.

"What?"

Valleta glared at Reveis once more.

"Don’t look at me like that. I truly don’t know," Reveis maintained her indifferent demeanor, "I only know that it happened after the Loki Familia returned from the 59th floor."

"That day, something happened on the 59th floor that made ’her’ fixate on an item."

"I can feel that ’she’ desires that item greatly, just like ’she’ desires Alya, perhaps even more intensely at some level."

After speaking, Reveis seemed to indicate that was all she had to say, glancing at Valleta.

"I don’t know what that item is, so I won’t seek it."

"My target remains Alya, and at most, that man; if you wish to use this item, I advise you to think it over carefully."

"After all, ’she’ sought out so many people, yet only Olivias, Ye’en, and I succeeded."

Leaving those words, Reveis departed from there directly.

"Where are you going?"

Valleta asked instinctively.

"To the place you want me to go."

The red-haired female monster vanished, stepping onto the long-awaited battlefield.

Only Valleta was left, clutching tightly onto the thing in her hand — a colorful magic stone.

After a while, Valleta’s face twisted and she spoke.

"As long as I can take revenge on that damned Hero, turning into a monster doesn’t matter!"

With this firm resolve, Valleta pocketed the colorful magic stone and turned to leave.

The forces of darkness were thus ready and prepared, waiting for the enemy to come knocking.

......

Inside the underground sewers, a sudden skirmish had already ended.

"Boom!"

As the last man-eating flower fell to the ground with a thud, crashing into the gutter, a grand splash was set off in the sewer.

Reiger, Ais, and Rephia stood in different positions, surrounded by countless collapsed man-eating flowers.

Some had been dismembered, others frozen into ice, all in extremely miserable states. Soon, they disintegrated into flying ashes, leaving behind colorful magic stones and a slightly worn-out battlefield, informing others that a one-sided skirmish had just occurred here.

"Hmm?"

Just as Reiger was about to sheathe his sword, something caught his attention, and he turned his head towards a direction.

In that direction was the location where the gem (eye) was inlaid.

At that moment, Reiger seemed just like before when he was outside the food storage on the 24th floor, locking eyes with the probing presence behind the unseen gaze.

However, unlike last time, the gaze Reiger felt this time showed no sign of retreat, instead staring directly at him as if deliberately provoking him.

"....."

Reiger didn’t speak, his mouth slightly curling upward.

This is quite interesting, isn’t it?

"Mr. Reiger? What are you thinking about?"

At this moment, Rephia’s voice reached Reiger’s ears, bringing him back to reality.

He saw Ais and Rephia, both of whom had finished the battle, come to his side. One was silently watching him, while the other looked concerned.

"I wasn’t thinking about anything." Reiger shook his head, not explaining what he had noticed, but said, "There are carnivorous plants here, which means we’re headed in the right direction."

"The enemy is indeed here."

"We’ve entered enemy territory, so let’s be careful."

Upon hearing this, Ais and Rephia both nodded, their expressions somewhat tense.

"Let’s go, this way."

Reiger continued to lead the way, with Ais and Rephia following behind him, moving towards the direction from which the carnivorous plants had attacked.

The three of them heightened their vigilance, not letting go of their weapons as they cautiously advanced.

They passed through a rusty, obviously ancient wrought iron door and walked onto a stone bridge built over a water channel, proceeding along the bridge.

After progressing like this for a while, Reiger suddenly stopped.

"There’s a staircase."

Reiger pointed towards the front of a side path diverging from the waterway.

"Staircase?"

Ais and Rephia hurriedly looked over and immediately discovered a channel in the floor covered like an opening with a lid.

The lid on the channel was slid open sideways, with a wide staircase inside that descended, large enough for even the carnivorous plants to freely pass through.

Ais and Rephia keenly noticed traces of dragging there, and there wasn’t much dust.

What does this imply?

"... Someone frequently comes and goes here."

Ais quietly said.

"Someone?" Rephia was a bit hesitant, cautiously saying, "Isn’t it monsters?"

"There are both people and monsters." Reiger gave the correct answer, saying, "We’ve finally found the enemy’s main base."

Reiger immediately headed there, descending the staircase.

Ais followed silently, forcing the nervous Rephia to follow with gritted teeth.

The three descended the stone staircase, distinct from the underground waterway, eventually arriving at the bottom where they found a door.

A door over three meters high, entirely silver-colored and inlaid with a crimson Treasure Bead, stood before Reiger, Ais, and Rephia.

Looking at this door, both Ais and Rephia seemed somewhat stunned.

It’s unavoidable.

"The material of this door..."

"Could it be..."

The two had recognized the material composing the massive door before them.

But having realized this, they were left stunned.

Only Reiger fixed his gaze on the crimson Treasure Bead on the door and spoke up after a while.

"This is it."

Reiger slowly said.

"Let’s go, notify everyone."

......

Two hours later, in front of the massive metal door, dozens of fully armed adventurers gathered.

"It seems this is indeed the place."

Leading the group, Finn observed for a while before making this declaration.

"I’m impressed you guys found this place."

Standing beside Finn, Theone looked at the three who had led the way with half admiration and half disbelief.

"It’s not our credit..."

"It was Reiger who led the way."

Rephia and Ais spoke up successively, attributing the credit to Reiger.

Reiger didn’t speak, only giving a slight smile.

It was Theona, pacing around in front of the door, who spoke uncertainly.

"Speaking of which, the material of this door seems to be Mountain Copper, right?"

In response to Theona’s uncertain remark, Grace, an expert in earth and stone engineering, confirmed it.

"Although it’s quite unbelievable, this is indeed Mountain Copper, the entire door is."

Hearing this, everyone present was left speechless.

"... Where did those filthy sewer rats find so much Mountain Copper?"

Bert clicked his tongue, voicing the thoughts of everyone.

Mountain Copper, also known as Orichalcum, is praised as the hardest metal, an extremely rare material regarded as the highest-grade precious weapon material in the world.

It’s the main material for many top-tier weapons and is indispensable for crafting various special armaments, such as Reiger’s Fool’s Sword, Ais’s Sword of Despair, and the Roland series weapons crafted by Chun for Loki’s top-tier adventurers. These special weapons with unbreakable attributes primarily use Mountain Copper as their material.

The hardness of Mountain Copper is astounding, and even without processing, it’s nearly impossible for any top-tier adventurer to leave a mark on it.

And now, there stood a colossal door over three meters tall crafted from this precious metal.

Simply put... it’s extravagant beyond belief.

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