Dreaming back to the Tang Dynasty, I was working as a detective in Chang'an

I was lowered into the well, already next to the water.

This well is much deeper than I thought. I dived down to a few meters in one breath, but it still didn’t reach the bottom. I’m afraid it’s not a bottomless well!

It was pitch black all around. The further I went down, the more depressed and uneasy I felt. I couldn't hold my breath for too long and swam back to the wellhead. I had to find a way, otherwise I wouldn't be able to dive down at all.

I tugged on the rope, and the fat man pulled me up.

"No, this well is too deep. I can't dive to the bottom in one breath. I have to find a way to breathe."

"It's easy, I have something."

As he spoke, the fat man took out a roll of something like a belt from his robe, with a mask on the head.

"This is an intestinal trachea given to me by a Haimengzi. He said it would allow me to breathe freely while diving in the sea."

Now I was happy and said:

"You are really Doraemon, what other treasures can you bring out together?"

The fat man looked confused again and said:

"What, what dream?"

I slipped up again and quickly said:

"Nothing, why do you have everything?"

"We in this business all have some weird things that we use to stay alive in times of danger."

I put the enterotracheal mask on my face, and it felt a bit like modern diving equipment. Not only did I not sigh, it turned out that the ancients had such advanced diving equipment thousands of years ago.

Then, the fat man handed me a small crystal tube and said:

"Take this, you can see things in the water."

This is a glass-like tube with powdery substance in it. There is nothing special about it under the light.

I took the crystal tube and jumped down the well again.

Now I really appreciate the wisdom of the ancients. Don’t look at this small crystal tube. Once it reaches a dark place, it will glow with a faint fluorescent green. With this little light, you can see the scene in the well. .

I held the fluorescent tube and continued to dive.

I don’t know how long I lurked, but I finally landed on the ground.

This well is funnel-shaped, with a large opening and a small bottom. When it reaches the bottom, the area is only large enough for me to turn around, and there is nothing at the bottom except some silt.

I was confused, where could such a big dragon hide? It's such a palm-sized place, we've reached the bottom, and we haven't even seen a dragon. Did that old fox lie to us?

I swam back to the wellhead and shouted to the fat man:

"There is nothing in the well. Have we been deceived by the old witch?"

The fat man frowned and said:

"It shouldn't be. That old fox has no reason to lie to us. What does it want? Go down and look carefully."

"okay."

I took a deep breath and dived to the bottom of the well again.

With the help of the crystal fluorescent tube, I looked very carefully at the bottom of the well this time, searching almost inch by inch.

Suddenly, I discovered that the color of a brick at the bottom of the well was different from the other bricks. The other bricks were covered with sphagnum moss, but this brick looked very smooth and looked newer than the other bricks.

I tried shaking the brick and found that it was indeed movable.

I slowly pulled the brick out, and there was a "click" sound, and the whole brick was completely pulled out. But this brick is not solid; instead, it is a solid brick facing the outside, while the inside is hollowed out.

A hole appeared on the wall of the well, and a golden dragon head seal could be faintly seen in the hole, placed at the deepest part of the hole.

I brought the crystal fluorescent tube closer and took a closer look. The seal on the dragon head was golden all over, but it had a very evil feeling, because the dragon's eyes were blood red, and they were two gems that glowed dimly in the dark. .

The demeanor of this dragon head seal is full of arrogance and disdain, and also has an indescribable weirdness. It opened its mouth as if it wanted to swallow everything here.

I didn't move the dragon head impression immediately. I was afraid that if I moved it, something terrible might happen.

I put the brick back intact and turned around to swim upstream.

When we arrived at the well, I said to the fat man:

"There was a brick at the bottom of the well. After the brick was taken out, there was a seal of a dragon's head. It was gold. I didn't dare to touch it."

"Fortunately, you are not greedy for money. If others see the golden dragon, how can they be unreasonable? As long as they touch the dragon seal, the mechanism will be triggered and the well will collapse."

"Then what should we do next?"

The fat man lowered his head and pondered for a moment, then said to me:

"Have you noticed anything strange around besides this dragon seal?"

I thought about it for a while, patted my thigh and said:

"By the way, it seems that there is a seat under the dragon seal. There are a few lines of words engraved on it. It seems to be gossip or something. I didn't understand it, so I didn't look carefully."

"It's a pity that I can't go down to the bottom of the well. This may be a formation. The Feng Shui hexagrams are performed on this base. You can check the directions according to different hexagrams, and then turn the faucet according to these directions to open the well. It’s the underground palace.”

"Are you so sure?"

"I'm not too sure, but it should be right. You have to go down again and memorize the patterns and words on the base for me, and then come up and draw them for me to see."

"okay!"