This dungeon has mushrooms growing on it.

Chapter 221, Section 220: The Holy Scripture's Admonition
[Where is Norris?]
What is Jida?
[What do you mean by saying Norris and Jida are doing well in their new home and I don't need to worry about them?]
The moment the Yellow Book was released, bad news came—it was outdated!
“With Jida, Norris can conduct large-scale reconnaissance on his own, so he really doesn’t need you anymore!” The voice uttered a cold, emotionless tone.

[But... I can still give Norris advice! That kid's so stupid!]
"This 'idea' means that you should make him not report you when you're stealing souls?"

"I can still tell stories!" the Yellow Book continued to argue.

It would have been better if she hadn't said anything, because once she did, Lin Jun couldn't hold back anymore and said disdainfully, "Putting aside the fact that storytelling has no practical meaning, I've read several of your stories, and what kind of garbage are they?!"

"A fallen nobleman, in an effort to restore his family's glory, started from the bottom, only to be killed in the wilderness by two adventurers who coveted his ancestral ring."

"In order to seek revenge, the princess of a fallen kingdom slept with the enemy and plotted to assassinate him, but in the end, she gave birth to eight children for her enemy!"

"Look at all the frustrating stories you tell all day long, what's so interesting about them?"

[This...this is all true story!] The pages shook even more violently.

"Alright, alright, stop rambling on about your stupid story!" the voice interrupted impatiently. "Hurry up and see how to work on this core!"

[core!]
When it comes to core issues, the Yellow Book indeed completely ignores figures like Norris.

[Boss, have you finally found the core?]
[Great news! This dungeon is practically ours!]
"What's so great about it? We can't even get through the door!"

The Pujis, carrying the yellow book, slipped to the edge of the core area and pointed at the two amethyst dolls from afar.

[Battle puppet?!]
[And they're even so extravagant as to use all S-grade magic crystals as their body?!]
[No wonder you couldn't get in, boss; this thing was a deadly weapon back in the Oath Wars!]
What is the Oath War?

[It's the founding war of the human kingdoms three hundred years ago, right? Their capital was called Oath City.]
Lin Jun wasn't particularly interested in history from hundreds of years ago: "Then what about this... war puppet?"

[A masterpiece of the puppeteer, a combat puppet powered by high-quality magic crystals. Of course, usually it only has a few high-quality magic crystals, not one like this one covered in S-grade magic crystals.]
However, with the disruption of intercontinental trade, the quantity and quality of magic crystals have declined, and raw materials are scarce, this profession is almost extinct.
[Right now, I guess only dwarves and some long-lived races still know this technology.]
"Who asked you to talk about history!" Lin Jun interrupted it. "I'm asking how to deal with these two door gods!"

The Yellow Book answered simply, "[No solution]."

"what?"

[Boss, these two in front of you are probably the pinnacle of battle puppets!]
[A full set of S-rank magic crystals! Such extravagant costs are unheard of before, and will definitely disappear in the future!]
"You mean," Lin Jun's tone turned dangerous, "that we just stand by and watch, waiting for the dungeon to collapse on its own?"

[Of course not!] The yellow book quickly added, [They're just automatically running battle puppets, why bother fighting them head-on?]
"You're not thinking of draining its energy, are you?"

"[What?]" The pages turned in confusion.

"The magic crystal energy is supplied directly by the underground city, so it's impossible for it to run out!" Lin Jun said irritably.

Lin Jun, possessing [Magic Perception], could clearly see that during the battle, magic power within the dungeon was constantly flowing into the two battle puppets. Compared to the sheer volume of magic power in the entire Amethyst Dungeon, a lack of magic was a joke!

[Boss, you don't know this, but the battle puppets themselves don't have intelligence.]
"No intelligence? That's nonsense!"

I just finished a match. Ambushes, backline attacks, situation assessments... Don't say it lacks intelligence; on the contrary, it's too intelligent!
[Their intelligence relies entirely on the dungeon's core computing power!] The Yellow Book hurriedly explained, [The problem with the dungeon right now is that its 'brain' isn't big enough and it's about to fall apart, right? As long as we continue to consume its pitiful computing power...]
"Wait a minute!" Lin Jun interrupted abruptly. "According to your logic, if I go and exhaust its nearly depleted 'brainpower,' won't the dungeon collapse even faster?!"

[That's true]
[In reality, even if you leave them unattended, these two battle puppets will become mere decorations in two or three months.]
[And rest assured, there's still a window of time before the battle puppets stop functioning and the dungeon completely collapses, allowing us to take action!]
The benefit of actively consuming it is that you'll know the moment the battle puppet stops functioning.
Ok……

Lin Jun thought about it and realized that what she said made some sense.

Moreover, this yellow book has revealed some more information.

Core computing power!

So this is the principle behind how the core maintains the dungeon!

It sounds like a computer mainframe.

"How can we restore this computing power?" Lin Jun asked.

[......]
[Boss, generally speaking, the core can sustain operations on its own. The fact that its computing power is continuously decreasing suggests there might be a problem with the internal structure.]
[If we're lucky, we can just go in and make some adjustments and fixes, then it'll be over. If we're unlucky...]
What if you're unlucky?

[Boss, to be honest, if we're unlucky and some parts really break down completely, even I can't fix them, since we can't get the corresponding parts.]
"Can we find a way to get repair parts from humans or demons?" Lin Jun was still unwilling to give up.

[If they could, humans wouldn't be avoiding going in altogether.]
“Okay…” After a pause, Lin Jun added, “Yellow Book, as long as you do your best this time, I won’t restrict you anymore, and I’ll treat you as a true member of Mushroom Garden. But the premise is that you have to do your best, don’t let me down!”

[Boss! I'll do my best! For the mushroom farm! And for myself!]
The Puji nodded their mushroom hats, rolled up their yellow books, and headed towards a safer area.

"I will start consuming their computing resources, and you will need to stay in a nearby cave. You'll have to endure this period of hardship, but once the dungeon is repaired, you will be free to move around!"

[Small understanding]
After carefully storing the Yellow Book three caves away from the core, Lin Jun began to send out Puji to trigger the battle puppets and die, as suggested in the Yellow Book.

Lin Jun never mentioned Mushroom Garden No. 3 to Huang Pishu from beginning to end.

That place was meant to be an escape route in the event of the dungeon's collapse. If the dungeon itself collapsed, it means the Yellow Book was either useless or malicious, so Mushroom Garden No. 3 shouldn't have been in contact with it at all.

Of course, if the Yellow Book really helps him solve the underground city problem and gain control of the core, Lin Jun wouldn't mind granting it considerable freedom as agreed.

(End of this chapter)