The cavern was damp and rotten, and the underground passages were lined with vines and mosses that would stain them with a soggy and slimy liquid.

"I didn't expect the world under the earth to be so disgusting!" Big-Nosed Fan walked at the front, holding his torch forward at an angle of sixty degrees, like a knight pointing his charging rifle forward.

"Actually, it's okay, at least the width of this passage is good, and it's not easy to touch the wall, at least it can accommodate three people walking side by side at the same time. Although Avi said this, he still followed Fan closely, and he had no intention of walking side by side.

"Boom!" The further they walked inside, the more clearly they could hear the sound of water dripping into the pool, "It sounds like there's an underground lake ahead," Big Nose Fan felt uncomfortable at the thought of a lot of dirty water underground, "I hope my ancestors will bless me and don't let me touch those stinky waters." ”

Carrie walked last, and she shone her torch on their way in, and found that there was no light "following" them, as if there was a dark wall behind them, and they were coming out of it.

The three of them continued to grope their way forward, and the sound of water droplets and the faint sound of water running more and more clearly made all three of them feel a little worried.

"Sure enough, it's an underground river!" Avi swept the two ends of the shallow underground river in front of him with his torch, flowing from a little higher on the left to the right, but whether it was left or right, it was like a deep pit submerged in darkness, and there was no bottom in sight. It's just that there is the sound of water dripping from the deep hole on the right side of the river, and the underground lake is probably over there.

Big-nosed Fan sighed loudly and said, "Fortunately, this river did not block our way, although it 'lay' in front of us, but this small river is neither wide nor deep, we just cross it and continue walking." He was the first to jump over the creek, and swept the road ahead with his torch, and found that he could go on this side.

"But—" Carrie jumped over with Fan, exploring ahead with her torch, "I feel like the road ahead is getting narrower and narrower, could it be a dead end!" ”

Maybe it was Carrie's crow's beak, or maybe it was really Delia's trick, and they didn't go far to find that the road ahead was sealed with stones.

Big Nose Fan kicked the big stone in front of him with his foot: "Damn the stone, how could you block the road!"

They crossed the creek and walked along the road, which did not fork in the road, but at the end of the road was sealed with stones.

Avi touched the large rocks that blocked him with his hands, and used his torch to reach through the cracks in the rocks as much as he could, and found that the stones were not there in the first place.

"Maybe the tunnel has collapsed, and it looks like it was a natural occurrence. Avi analyzed.

"Maybe there are other outlets. Carrie said softly.

The other two boys both shook their heads at the same time, and the big-nosed fan shook his head with the meaning of "Don't ask me, I'm annoyed to death now." Avi shook his head and said, "I don't know." In fact, they all know very well that if they can't leave the Oguna Empire from this designated shortcut, then they may have to leave the checkpoint, but with Avi's identity as a "dead" person, it is difficult for them to pass through the border checkpoint, even if they are lucky enough to pass, it is estimated that they will not be able to catch the carriage to the republic- The carriage was scheduled to leave by tomorrow afternoon, and the joints were already in place, and if the three of them did not arrive in time, the connectors would report to Delia, and the three of them would consider the mission a failure.

"No, is the passage of the stone cave really a dead end?" Fan said dejectedly, "Carrie, you always say that you are lucky, why is it really a crow's mouth!"

Carrie didn't want to say anything more, so she just stood there and looked back.

"Look at this," Avi said, gesturing to the floor, "there seems to be a symbol on the floor." The other two immediately looked back at the symbol on the ground, which was a star-like symbol, but the quadrangular star was missing one side.

"Could this be a mechanism, and if you figure it out, you'll have a way out?" Avi began to fumble around the wall.

Carrie said, "Actually, I think we may have missed the right path just now..."

Before she could finish speaking, Fan shouted, "I see, this missing star is guiding the direction of the mechanism." ”

Fan looked in the direction he "understood", and Avi had already felt a mechanism there, a cylindrical stone protrusion. He pressed it hard, and the entire stone wall moved backwards, like a geared door. Fan held the iron gun to block Avi and Carrie, and motioned for himself to go ahead.

But Avi did not walk away, but took out the knight's sword in his left hand and strode in with a torch in his right hand.

"It's very narrow in here!" Avi lit up the whole scene with a torch in a small space inside.

There were two corpses, and only the clothes on them were recognizable.

"The one on the left is a man, and the one on the right is probably a little girl. Fan used the tip of the iron spear to tease the bones, the size of the bones and the clothes that had not yet completely corroded and disappeared spoke for themselves.

"There's also a letter here. Avi crouched down and picked up a letter from the man's bones. The envelope was not stained, and the letters inside were intact.

"Carrie, read it, Avi and I don't know how to read. Fan snatched the letter and said.

"Who says I don't know how to read?" Avi snatched the letter back. Although he was born as a younger brother in the racecourse, his mother Joni let him follow the teachers of Golden Hoof City to learn to read and write since he was a child, which was indeed a far-sighted decision.

Avi read the letter after reading it:

I'm a normal designer, and I'm in charge of the designs built here. At first, I was reluctant to design those traps that hurt people, but the master insisted that I do it.

The owner said that he wanted to keep something very important, and that thing was protecting the owner. I don't know what it is, but the master feeds me, so I just have to do what he commands.

It's just that in the end, in order to keep the secret from telling the secret, the master decided to take back the life he gave me. It's just sad that my youngest daughter died because of it. But I don't regret it, because my life belongs to the master.

"An unknown person, the content inside is also very strange, I don't see any other harmful agencies here besides this one!" Fan showed the letter to Carrie.

"Maybe he designed something in a place we didn't know. Avi wanted to bury the two skeletons, but he didn't have the tools.

"Let's find another way out quickly. Carrie said suddenly.

"There's no way here, and there's no fork in the road all the way ahead, just a small river in the middle. Fan shook his head and said.

At this moment, the sound of water drops and running water from the rear disappeared.

They hurried back to the river. At this time, they noticed that the water of the small river had become very slow, as if the water upstream had dried up.

Avi swept both sides of the river with his torch, and the small hole that could only hold a person stretched in, and there was really no bottom in sight.

"Let's try walking the river, maybe it's the way through the hole. Carrie seemed to have been preparing for a long time when she said this, and her tone was unusually firm.

The big-nosed fan put his hands on the back of his head and said, "I don't want to walk in front, what if I fall to my death?"

Avi asked, "Shall we go upstream or downstream?"

Carrie was about to speak, but Fan preemptively said, "Definitely not going up, what if a lot of water suddenly gushes out?

Avita had no choice but to go to the forefront, cautiously moving forward step by step. The slippery river made him fall several times, and there was a shallow layer of water that soaked the shoes of the three of them.

The further down the three of them went, the more sloping the river became, but the air became drier. Just as they were about to lose their footing, an eerie light appeared in front of the river.

The three of them slowly groped their way over, and Avi, who walked in front, was the first to see the scene outside the river cave.

Above the stone path was a stone that glowed strangely bright, white and blue intertwined to illuminate the bottom. The stone path continues downward in a spiral shape, and at the end of the stretch is pitch black, but you can probably see a flat land and a small lake, and the river that flows down the river is directly from the mouth of the cave to the small lake.

"This stone path can't be man-made, right?" Fan wondered.

"It doesn't look like it, but it's definitely for people to walk by. Avi swept the surroundings with a torch again, and the spiraling stone path was not next to the surrounding walls, but the surrounding walls were connected in a ring, like a cylinder, except that there was a downward stone path inside the cylinder.

Carrie looked silently at the blue-white hedron above her head, which seemed to have magical power to absorb all her attention.

"Carrie!" Fan nudged the stunned Carrie, "we're going down." Only then did Carrie recover from her slumber and follow the two boys in front of her.

They didn't have long to walk before they reached the flat ground below. The flat land was drier than the previous one, but strangely enough, there was a small lake in the middle of the flat land, and the lake was pitch black, and the river was dripping from the lake.

Big-nosed Fan swept the lake with a torch, frowned, swallowed a mouthful of saliva, stared at the small lake and said, "We're not going to jump into this lake, are we?"

"No, we're on this road!" Carrie walked to an unnoticed corner, where she placed her torch and a locked iron door appeared in front of everyone.

"Oh my God, there's a door!" shouted Fan.

Just when Avi and Fan were surprised, Carrie took a key from her bosom, held it up, and said, "This is the last training that Miss Delia said, and there will be danger in it." ”