Due to the experience and thrill of exploring Longtan for the first time, when going to the underground ancient city again, each person added a security guard to fold the waist knife in case of accidents.

This security folding knife is made by the security clan, because in the process of calcining to constantly fold and add steel to produce a special pattern, is the name of the folding knife, in history has been famous. The security clan used to be a blacksmith under Genghis Khan's subordinates who specialized in making weapons, and the knife created by them was combined with hardness and toughness to the extreme, and when it collided with the enemy's war knife, the opponent's knife was either cut or curled, but the security folding knife was safe and sound, and it was still sharpened like clay, which was because Genghis Khan had a great advantage in weapons when he occupied various countries. With such a folding waist knife in hand, which sharpens iron like clay, it can somehow give people some comfort in their hearts.

The exit of Zhang Bao's escape is about 30 kilometers away from Longtan, located in the deep mountains and valleys, with towering trees, inaccessible and inaccessible, and there is no way to go. Under the leadership of Zhang Bao, along the secret road that he had already marked, he successfully reached the top of the mountain, looked down in the canyon, only to see the dense fog surging, the clouds were steaming, the scenery was beautiful, there was more flowing water, the sound of birdsong, making people trance-like entering the fairyland, I really wanted to stay away from the hustle and bustle, live in the mountains for a long time, watch the flowers bloom and fall in the four seasons, and watch the clouds in the sky.

This first visit to the ancient city is still Zhang Bao and Zhao Mingding.

On the top of this inaccessible mountain, there is no need to send someone to stay at the entrance of the cave, under the command of Zhang Bao, the two fixed the climbing rope, put on waterproof clothes and pants, carried the equipment, pulled the rope down in turn, and came to the entrance of the cave. At this time, it was the dry season, and the water flowing out of the cave was not very large, and there were stones blocking the entrance of the cave, so the waterfall falling into the canyon was much smaller than in the past, which can be seen from the water stains on the exposed stones.

The entrance of the cave is not very big, about five meters wide, about ten meters high, the slowly flowing water is crystal clear, about three meters wide, knee-deep, there are some small fish that cannot be named swimming in the water, I don't know if I am afraid of people, I want to stay away from the hustle and bustle, I have never been disturbed, I don't know the reason why the world is sinister.

The cave twists and turns, the water flow in the cave is big and small, deep and shallow, Zhao Mingding is wearing waterproof clothes and pants, following behind Zhang Bao, holding a flashlight in his left hand, and holding a security guard folding waist knife in his right hand, under the guidance of the flashlight, a deep foot and a shallow foot, walking towards the underground ancient city he described, the sound of wading water echoes in the cave, and it is spread far away.

Because he had read too many books such as "Notes on Tomb Robbery", when he walked to the depths of the cave, Zhao Mingding's nerves were tense, and his eyes did not dare to relax for a moment. He even regretted not bringing some glutinous rice and black mule hooves for self-defense. This kind of thing, not afraid of 10,000, just in case.

The two of them were like the devils who entered the village, holding a flashlight in their left hand and a knife in their right hand, without saying a word, their eyes slipping, and they cautiously pushed forward, and the flashlight swayed in the hole. Later, for safety reasons, the two advanced one after the other, Zhang Bao in front, Zhao Mingding in the back, the two were about two meters apart, and the flashlights were side by side, one on the left and one on the right. In this way, the cave is like daylight, and the situation is clearly visible from a distance of ten meters in front of you.

After walking so carefully for nearly an hour, everything was normal, the tense nerves of the two of them were relaxed, and they could even feel the flow of air in the cave, and it was estimated that there was a cave and the surface of the earth.

From the gentle flow of water in the cave, it can be inferred that the cave does not have a large drop, and it can be said that it is a flat river, and the smooth and flat walls of the cave seem to have been dug artificially.

The two explored all the way, and at a bend in a corner, Zhang Bao suddenly let out a "huh", Zhao Mingding looked sideways, and saw that the water flowed back to the whirlpool at the bend, and there was a small sand nest on the side, and there was a fist-sized yellow and clear stone lying on it. Zhang Bao took a step forward, copied the stone in his hand, and handed it to Zhao Mingding, he took it, shone it with a flashlight, and couldn't help but be surprised, and screamed "Ah".

"What's going on?" Zhang Bao asked.

"Dog's head gold, this is a piece of dog's head gold!" Zhao Mingding couldn't control the excitement in his heart and shouted.

Dog's head gold is a natural gold nugget condensed by golden sand in nature in a special environment, which is shaped like a dog's head, so it is named dog's head gold. Although the texture is not pure, it is extremely rare, it can be encountered but not sought, and once found, it will be preserved as a town treasure, so the price is expensive. Legend has it that during the Qing Dynasty, in order to win the favor of Lafayette, some local officials wanted to dig up a piece of dog's head gold and give it to her as a birthday gift.

What Lafayette didn't get, but today it was obtained by the two of them, how can there be any reason not to be excited?

As soon as he heard that this piece of yellow and clear things was dog head gold, Zhang Bao was very excited, and took it from Zhao Mingding's hand and spread it in his palm, only to see that this piece of dog head gold was in good condition, and the golden and clear terrain was like a dog's head, but it was more like a sleeping puppy, and it was cute and cute.

The two dug the sand nest where the dog's head gold was found, and never saw the second gold nugget, so they reluctantly set off again, moved forward, and searched carefully, but there was no shadow of the gold nugget all the way, until Zhao Mingding picked up a white pebble the size of a pigeon's egg.

The two searched all the way, and finally arrived at the stone steps mentioned by Zhang Bao earlier. As soon as they saw these stone steps, the relaxed nerves of the two tensed again, worried that the gold-armored warrior he mentioned would rush out suddenly, so they couldn't help but clench the security guard's folding waist knife in their hands again.

These stone steps are indeed as Zhang Bao said, they are carved and hewn from the mountain, and they are very smooth, about five meters wide. The two of them cautiously climbed the stairs, and their eyes didn't dare to blink, for fear that in the blink of an eye, the golden-armored warrior would stab at him.

Walked along the stone steps for about ten minutes, as Zhang Bao said, there was a faint light in front, and an arched doorway appeared in front, under the light, I saw two big characters carved in italics above the doorway: Songcheng.

For the sake of safety, the two extinguished the flashlight in their hands and quietly stepped into the stone room, but saw that the small arched doorway on the left had been blocked by the stone door.

The two of them pushed with their hands, but the stone gate did not move, so they turned around and walked towards the stone gate in front, only to see the sun shining outside the door and the sky was blue.

Walking out of the doorway, there is a platform, with stone railings on both sides, moss-stained, and under hundreds of steps, a wide and smooth avenue extends straight forward, leading into the distance. On both sides of the avenue are low square stone houses that appear to be of the same size and height.

Obviously, the foothold of the two is a tall building, from here you can overlook the entire Song City, you can see that Song City is surrounded by mountains on all sides, the city is flat, there are only two main roads in the north and south, and the radius is five square kilometers. At this moment, although the sun is shining, the entire Song City is silent, except for Zhao Mingding and Zhang Bao, there are no living creatures, and there is not even a single bird in the blue sky.

Seeing this scene, the two looked at each other, so shocked that they could barely speak.

After a while, the two of them calmed down and began to inspect the foothold, only to find that it was a tower built against the mountain, in the shape of a ziggurat. The entire tower is made of stones.

The floor where Zhao Mingding and Zhang Bao are located should be close to the top floor, and then go up to the top of the tower, so there are not many rooms on this floor, and there are only three rooms side by side, and the one where the two of them come out is the leftmost one, which means that there are two rooms on their right.

The two rooms on the right are the same as the ones on the left, they also have no door, the difference is that the stone room in the middle houses an unknown statue, the stone room on the far right, like the stone room on the left, is also empty, and there is also an arched doorway on the right, which is also blocked by the stone door, and is symmetrical with the stone room on the left.

The two lingered in the three stone rooms for a long time, found nothing, and were about to leave, but saw Zhang Bao's face move, walked to the stone room in the middle for the statue, looked at the statue with fixed eyes, and was silent for a long time, and then followed the gaze of the statue to look at the opposite wall, but saw that there was a stone on the wall whose size was different from the size around it, and it was much smaller. Seeing this stone, a smile appeared on Zhang Bao's face.

"Dig that rock down!" Zhang Bao said that he was about to use the security guard in his hand to pry the waist knife, Zhao Mingding hurriedly pulled him down, took out a chisel and hammer from his backpack and handed them to him, and then set him up.

Zhang Bao used a chisel to hollow out the surrounding stones, and then pried the stones out, and saw a hole in the back, reached out into the hole, and took out a box wrapped in red cloth. The box was opened, and there was a jade seal inside, only to see that the jade seal was missing a corner, inlaid with gold, and engraved with eight insect and bird seal characters: Ordered by the heavens to live forever.

"Emperor Jade Seal?" When Zhao Mingding saw it, he shouted loudly.

This emperor's jade seal has a great origin.

According to records, the seal originated in the Zhou Dynasty, and it was only in the Zhou Dynasty that there was a distinction between the seal and the seal, and the seal used by the emperor was called the seal, and the seal used by the subjects could only be called the seal.

The term jade seal was first proposed by Qin Shi Huang. He ordered Li Si to engrave a jade seal with insect and bird seals on He's bi, and stipulated that only the large seal used by the emperor could be called a jade seal. This jade seal is called "the jade seal of the country", its square circle is four inches, five dragons on the New Zealand, the front is engraved with the eight characters of Li Si's book "Ordered by the sky, both longevity and Yongchang", as a token of "imperial power and divine grant, orthodoxy and legitimacy", and the seal of the emperors after Qin. Subsequently, the emperors of all dynasties took this seal as a symbol, and enshrined it as a treasure, an important weapon of the country. Those who ascend to the throne without this seal are ridiculed as "white emperors", which appear to be lacking in confidence and are despised by the world. As a result, it prompted the people who wanted to seek the great treasure to fight for me, causing the jade seal of the country to change hands repeatedly, and it traveled in Chixian County, Shenzhou for more than 2,000 years, and finally disappeared without a trace.

If this is really the emperor's heirloom jade seal, let's not say that the emperor is not done, the value of this jade seal alone is immeasurable.

Zhang Bao heard that this jade seal was the emperor's jade seal, he couldn't help but be taken aback, his hand was loosened, and the jade seal fell straight to the ground.

"It's dangerous!" Zhang Bao couldn't help but wipe the cold sweat that came out of his forehead.