The eight-hundred-meter avenue soon came to an end, and in front of it was a slender fissure, and it was so black that nothing could be seen.

The four of them turned on their headlamps, pulled the ropes, and rappelled down the steep crevasse.

The descent process was smooth, descending about seventy or eighty meters away, with a protruding platform and a gentle slope under the platform.

When I looked up, the road turned into a ray of sky with light stone lamps.

Altaïr untied the rope and said, "The road ahead is easier, but I haven't finished this level. Some artificial beings are very difficult to deal with. ”

Riley said, "According to George's inference, walk about a kilometer further to the entrance of the Menzaro Underground Library. I have to go. ”

Ralbin said, "Are we going to fight in the dark? We don't have much advantage—what's that glowing?"

Everyone followed his fingers, and in the thick darkness, patches of glowing yellow-green mist slowly drifted.

Altaïr said, "That's the Flash Moth, an artificial lifeform created by Faroug. Each of them spreads its wings the size of a fingernail and glows, and they like thousands of them to gather in clusters, high and low, and all those who are attracted by the light are sucked dry. ”

"What are they afraid of?"

"There's no good way to deal with it, so you can only get around. ”

"Fire?"

"It's already deep underground, there's a lot of black oil around, and we're done with it. Therefore, fire and electricity must not be used, and the soil system must also be careful, because it will affect the terrain too much, and if we accidentally get the black oil out, we will also be drowned. ”

Duck said stupidly: "Then you can only use water-based spells, it's so humid down here, only God knows how many effects water-based spells can have." Faruger, this guy, it's really hard for him. ”

"This kind of rat-throwing environment, coupled with his constructs and artificial lifeform troops, the library can be said to be an iron walnut, see if our teeth are hard, let's go." ”

As she walked, Riley made a noise under her feet and kicked an iron creature that she picked up to see was the remains of a constructed ant.

The flesh of the wreckage was cast hollow, leaving only the iron shell and a pile of tiny teeth scattered within the iron shell, and the wreckage was covered in rust and looked like it hadn't been touched in a long time.

She shuddered, "These glitter moths have a really good appetite. No wonder the ants refused to come down. ”

Altaïr said: "Since the city of Bauda began to settle, Farrug has thought of countless ways, but people can't fight naturally. I had to move all of them. Since then, the underground library has not been managed. Those artificial lifeforms, constructs, all ran out. For hundreds of years, anyone who is still alive is not easy to deal with. ”

Duck nodded: "They have been killing each other for hundreds of years, which piece of whose territory is it, it is estimated that they have formed a tacit understanding, right?"

Altaïr wasn't sure: "It should be." For example, the central avenue just now, which is the world of ants, is the first half of the glitter moth, and I haven't been to the back. The real danger will start there. ”

"Why not?"

Altaïr was calm: "Intuition, an intuition for no reason. Every once in a while, an outside adventurer dies here, leaving behind some equipment or something, and some of our gang members will come here to make some extra money. So I'm not going to go any deeper—to be honest, I'm already the deepest I've been to this location. ”

As he spoke, a large mass of glittering moths slowly flew towards him, and Altaïr pursed his mouth and blew on them, and the glittering moths were swept into two by the air current.

Altaïr laughed and dodged the slow-moving insects.

Riley smiled, "Isn't it easy to deal with with just one breath?"

"Quite the opposite. Didn't you notice that they were faster after splitting in two, and if you used wind spells, they would blow these little things all over the place, blocking the road completely, and you could only wait for them to slowly gather into a clump. In a place like this, who knows what will be waiting for something?"

Ralbin added: "I feel like these things are used to limit the range and speed of the enemy's movement, and there must be a lurking backhand on this level - do you want to contact your hometown?"

Duck waved his hand: "No, everyone, turn off the headlights." The four of us are just four big torches. We rested in place for five minutes, being careful not to be surrounded by glitter moths. ”

Altaïr said, "How can we see things when the headlights are off?"

Duck handed him a ghostfire mask: "Assasin will definitely not refuse new equipment, put it on." Ladies and gentlemen, we put them on too. ”

Altaïr put on the ghostfire mask and screamed, "Can you see things in the dark?"

"The Inspired elders call this night vision. Be careful not to suddenly turn into a bright light, you will be blind. ”

"Got it, can you give it to me?"

"This mission is beautifully done, I'll give you one. ”

The old guy laughed wickedly, probably thinking of some special use.

Looking out of the ghostfire mask, dozens of clouds of mist emitting a white hazy light slowly fluttered in a green and gloomy background.

Duck stared at it for a moment and asked, "Is there a pattern?"

Riley replied, "No, it's completely random. ”

"Anything else?"

"Nope. ”

Just as Duck was about to give the order to search forward, George's voice suddenly came from the headphones: "Duck, report the situation." ”

"Safe. Get ready to move on. ”

"Wait, I've just received a message from Isabella here, who has found interesting information from the Holy Mosque in Dorihachi. ”

"What?"

"It is likely that the library was not badly damaged, but sank smoothly into the ground. ”

"Basis?"

"Do you remember the tentacles of the rotting water monsters outside, those ten-meter-tall things that sway like octopus tentacles along the flying carpet?"

"Impressed. What's the name?"

"They are Alien Slimes, but this Alien Slime is not an offensive or defensive weapon, but is used to support it. ”

Duck was taken aback: "Support?

"Wrong. Slimes are not all soft, such as the rock slimes in the earth system, the shell is as hard as steel, as long as it can limit their range of movement, it is no problem to support the weight of the house. And, they have one of the biggest benefits, they repair themselves without rusting like steel. ”

George paused for a moment and said, "Do you see these 'tentacles' on Central Avenue, the same as the ones outside?"

"Similar but different, they obviously grow up from the ground, but they don't move like the ones above. There must be special equipment that inhibits its underground activity - so they're actually a bunch of living pillars?"

"I'm sure so. Straight down the tentacles of the Rotten Water Monster must be in the right place for the Library. In this way, Faruger kept the library stable and would not be overturned or destroyed by subsidence. ”

Lelich said, "Why did Farug spend so much time?"

Duck said, "I think I think I want to build a 'house of steel' type library, which can defend against foreign attacks and stratum settlement. ”

Ralbin frowned: "As a caliph, it's not easy for him to protect a building, why put a library in a place like this?"

Altaïr said, "What is the reason for protecting the Commentary on the Book of Heaven? Because it is so important that even the Caliph may not be able to escape the open and secret battles, right? ”

Riley objected: "However, if the stratum subsidence is very serious, burying the entire library into the ground, no matter how strong it is, it is useless, right? Besides, there is a library first, and then there is stratum subsidence, and finally Farrug has no choice but to give up." So the reasoning just now is not valid. ”

Duck frowned and thought for a while, then said, "Not necessarily. What if we think the other way around?"

"Think the other way around?"

"He wanted to sink the library to the ground in the first place. So, the location of the library was carefully chosen, and then it was deliberately sunk into the underground in such an isolated environment, so that he could do what he wanted without all distractions. ”

"But isn't that the same as burying yourself alive?"

"If he's willing to do this, there must be a safe way to escape - George, you just said ...... those constructs and artificial lifeforms."

George said: "Yes, since the library is safe and sound, then the people inside may not be dead, and there will be no 'accidental' leakage of constructs and artificial lifeforms, in other words......"

Duck yelled, "We've fallen into Faruger's trap, be careful!"

As soon as he finished speaking, there was a clear grinding sound of minions tearing at rocks from the ground.