Chapter 935 - 721: The Formidable Door and Wall - Isekai Adventure in the Dimensional Cube - NovelsTime

Isekai Adventure in the Dimensional Cube

Chapter 935 - 721: The Formidable Door and Wall

Author: Confiding Pixie
updatedAt: 2025-09-20

CHAPTER 935: CHAPTER 721: THE FORMIDABLE DOOR AND WALL

In Orario, the market price for the hardest metal, Mountain Copper, is generally set at one million valis per kilogram.

This is when the Mountain Copper contains very few impurities.

In such a case, a palm-sized piece of Mountain Copper can sell for millions of valis, and if it’s of ultra-high quality with minimal or no impurities, its price can easily surpass ten million valis.

Now, here stands a giant metal door several meters high, entirely made of Mountain Copper, with a color that seems to lack impurities.

What does this imply?

It implies that the material cost of this door alone is worth at least several billion, or even over ten billion valis.

How could such an astronomical door not leave people shocked and speechless?

Ais and Rephia were taken aback upon seeing this hardest metal door, and the others also lost their words after confirming the door’s material as Mountain Copper. This is why.

"Whoo~~~"

Loki, mixed in with the crowd, whistled and said this.

"Looks like the folks on the other side of the door have been busy doing some sneaky good deeds in the dark, really, makes me want to just rip this door off."

The main god’s flippant words did not elicit any dissatisfaction from the members at this moment.

Although Loki’s remark was frivolous, everyone understood what she meant to convey.

"...To be able to use so much of the hardest metal to make a door, the enemy is wealthier than we imagined, clearly having no shortage of resources and a stable source of funding."

Revilia calmly pointed this out, causing everyone to nod in agreement.

"Is it the remnants of the dark faction? Or the handiwork of urban destroyers?" Grace said in a deep voice: "It can’t be those monsters controlled by the Polluted Immortal Spirits who are making money, can it?"

"Naturally not." Finn shook his head and said, "Reiger mentioned that those monsters have little knowledge of surface intelligence, clearly having always used the underground city as their stronghold, almost never appearing on the surface, so this door and the base behind it could only have been built by the remnants of the dark faction or people of the urban destroyers."

Whether it was Reveis or Olivias, when they met Reiger and Ais in the food storage on the 24th floor, they both acted like they were unfamiliar with them.

Olivias knew Ais but not Reiger, and his impression of Ais stayed with years ago, even his impression of the Loki Familia was years old, as if he had been out of touch for several years.

Reveis was even more serious than Olivias, not recognizing Ais nor even Reiger.

Clearly, Reiger and Ais are considered celebrities in all aspects, undoubtedly big figures in Orario, even famous worldwide, known to all, yet the two monsters were so unfamiliar with them, suggesting they never or hardly ever ventured to the surface, and hence had a limited understanding of it.

In this way, this hardest metal door and the enemy’s base behind it couldn’t possibly be their work and could only be the machinations of the remnants of the dark faction or urban destroyers’ followers.

Of course...

"Who cares about that sort of thing." Bert said with extreme impatience: "All I want to know now is whether we can go in or not."

The answer to this question really isn’t easy to determine.

"It should be very difficult, right?"

"After all, it’s a door made of the hardest metal."

Raul and Angel gave their opinions from the side.

Items made from the hardest metal Mountain Copper can even possess an indestructible quality, though such a feat requires special skills, only possible by an Advanced Forger, but even with simple processing, breaking the hardest metal is not something the average person can accomplish.

Not even the first-level adventurers could accomplish that.

"Grace, can you do it?"

"Don’t use that provocative tone with me... though if I really want to do it, maybe I can manage now? I just don’t know what the cost would be."

Loki sidled up to Grace, whose "strength" parameter ranks as the absolute top tier across the world’s adventurers, asking with a teasing tone, garnering an extremely displeased response from the Dwarven warrior.

The super-advanced guardian Dwarven warrior, now at Lv.7, told everyone that even for him, trying to destroy a door made of the hardest metal would not be easy.

"Can’t we dig a tunnel beside it?" Theona raised her hand and said: "We might not be able to go through this door, right?"

Regarding this suggestion, Theone, as Theona’s sister, did not approve at all.

"If they can use the hardest metal to make a door, how could the enemy allow someone to casually dig a hole beside it?"

To prove Theone’s point, Ais stepped forward, drew the Sword of Despair, and struck the wall beside the hardest metal door with one slash.

With a "clang," Ais’s slash only cut through the surface of the wall, promptly rebounding.

And from within the fallen wall surface, the steel-colored metal revealed its form.

Reiger also silently pulled out the Sword of the Fool, slicing off another section of the wall’s surface, exposing the metal within.

"A-again, the hardest metal...!?"

Theona was startled.

"No, this isn’t Mountain Copper, it’s Adamantite."

Grace countered Theona’s words, yet delivered an answer that still left everyone astounded.

Hard steel, also known as superhard metal, is a precious metal with hardness second only to the hardest metal, Mountain Copper, and is equally extremely expensive.

Theona’s great double blades are forged from hard steel, created by several advanced forgers who used an excessive amount of hard steel, tirelessly hammering day and night, to finally create a first-level weapon.

The cost of this first-level weapon is one billion twelve million Faris.

And now, this precious metal, with hardness second only to Mountain Copper, is being used to fill in the rocks, crafting walls.

"No way?"

Even Theone was stunned this time.

"Doors made of the hardest metal... walls made of superhard metal..."

Revilia was speechless.

"Where, where did they get so much precious metal?"

"...If this whole wall is made of superhard metal, I’m afraid just the material cost of this wall would be equivalent to the entire internal funds of a large family, right?"

Raul nearly lost his legs, while Angel was mumbling.

"Hey, old man, you can’t handle the hardest metal, but surely you can manage superhard metal, right?"

Bert got irritated and shouted at Grace.

"You’re really putting a strain on these old bones, you punk." Grace was so angry his beard flared, "I can definitely manage it, but the thickness of this wall isn’t small, by the time I break it down, everything will have cooled, we don’t have that much time!"

"How about, using magic?" Rephia hurriedly suggested, "If we use high-power magic, we should be able to destroy this wall, right?"

However, it was no one else but Reiger who opposed Rephia.

"It’s still the same, very difficult."

Reiger picked out a stone from the stripped wall dirt, turned around, and presented it to everyone on his palm.

"Take a look at this?"

Everyone looked closely, and soon many people began to twitch their mouths.

They recognized this stone.

"...Anti-Magic Stone."

Ais whispered the origin of the stone.

The Anti-Magic Stone, a material dropped by Obsidian soldiers appearing on the 37th floor of the underground city.

As its name suggests, this material can weaken the effects of magic, making it an excellent material for crafting superb anti-magic armor, with a high price.

"Could it be that this wall and door are also mixed with Anti-Magic Stones?"

Theona moaned the words that left everyone speechless this time.

Although not as hard as Mountain Copper, the hardest metal, and hard steel, the superhard metal, Anti-Magic Stones, as dropped materials only appearing in the deep layers of the underground city, are themselves extremely expensive.

With the obstruction of these Anti-Magic Stones, not only physical attacks but magic attacks can’t harm the door and wall in front.

"Good grief, do they have this much money?" Loki started to grumble extremely resentfully, "Why are these rats hiding in the sewers richer than our family? Protest, protest! Serious protest!"

No one paid attention to Loki, each and every one of them frowned.

"This is troubling." Finn sighed, "Now the problem is, even if we find the enemy’s stronghold, it doesn’t mean we can enter just because we want to."

"Actually getting in isn’t impossible." Grace chimed in, "But it wastes too much time."

"The enemy has already transported an unknown number of ’Treasure Bead Fetuses’ to the surface, and when those ’Treasure Bead Fetuses’ will metamorphose is also an unknown." Revilia worriedly said, "We don’t have much time, at the very least we must know when the enemy’s urban destruction plan will officially launch to decide whether or not to spend time breaking through this secret base."

"The issue is, we don’t know anything." Finn calmly pointed out, "We lack intelligence too much, now it seems like the initiative is in our hands, but actually, the enemy is the one holding the initiative."

"What should we do now?" Theona hurriedly asked, "Don’t we attack?"

"Are you dumb?" Bert scolded bluntly, "If we don’t attack, are we going to wait for the enemy to come to us?"

"Idiot, didn’t you listen to the captain?" Theone also reprimanded, "We don’t have time to wait, no matter what, we have to attack."

Everyone began giving advice one after another, making the scene noisy.

Even Ais frowned tightly, unsure of what to do.

Rephia clutched her magic wand, looking worried.

Only Reiger, while everyone was arguing, walked up to the door made of the hardest metal.

He reached out, touched the door, and a transparent gleam shone in his eyes.

Instantly, the scene inside the door appeared in his eyes.

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