Hearing the shout, Tang Wuxin hurriedly entered from the passage on the right.

After entering, I found that behind the bluestone wall, there is a "renovated" big cave, the surrounding stone wall is flat and smooth, and the top is like a dome.

On the ground in the middle of the cave is a large Taiji-shaped closed water tank, which is glittering with silver.

This taiji-shaped tank is dug out of a circle and an S-shaped line in the middle, and the two taiji fish in the middle are flat. At the location of the fish eyes of the two Taiji fish, an object was placed in each place.

The three of them didn't first look at what was on the fish's eye, and their attention was focused on the center of the circle and the S line of the Taiji diagram. Here, an "instrument" more than a meter high was placed.

"Isn't that the image I had in my dream?" Tang Yi's heart was like a drum, and it was pounding.

It does look like a muddy image.

The upper part is a sphere of three black circles, the two vertical circles are crossed at 90 degrees, and the horizontal circle is in the center.

Underneath the sphere, there is a four-legged bracket.

The shape of the bracket is the green dragon, the white tiger, the vermilion bird, the Xuanwu, and the four elephants of Xuanyin. The colors are also blue, white, red, and black.

A bead with a white background, glowing with five-color brilliance, is slowly rotating in a track on a spherical circle.

Although the whole cave is not very bright, it is equivalent to being under the full moonlight, so you can see the inside clearly. The light emitted by this bead is like a bright moonlight when you spread out, but when you look at the bead alone, it is a five-colored brilliance.

Tang Yi involuntarily raised his head, the top of the cave was polished and smooth stone wall domes, with small holes arranged one after another. Although it is opaque, it gives people a sense of connection to the outside world.

If you look closely at the shape of the small hole, it is a "spoon".

The Big Dipper.

Tang Wuxin obviously noticed this as well, and after looking at it as a whole, "This thing that looks like a muddy elephant may be the Xuanhuang Magic Lamp!" ”

"Huh?" Tang Yi and Wen Jia let out a sound of surprise together.

"It seems that this lamp is not the same as the legend." Tang Yi pondered, "There's too much information here, which one do we start with?" ”

"Finally, study the magic lamp, take a look at this formation first!" Tang Wuxin said as he walked to the Taijitu sink.

Tang Yi and Wen Jia also stepped forward.

The shiny silver liquid in the sink was not transparent.

"Not good! Mercury! I was negligent! Tang Wuxin hurriedly covered his mouth and nose.

Tang Yi and Wen Jia were also immediately shocked.

Mercury is the only metal that exists in a liquid state at room temperature and pressure. Mercury is known as mercury and can emit mercury vapor at room temperature.

This vapor is poisonous!

Although the sink is not wide, only about 20 centimeters, the diameter of the entire Taiji diagram is about three meters, and it has accumulated for so many years in such a circle, and the toxicity in the air can be imagined.

The worst thing is that this mercury vapor is still tasteless!

They brought a lot of equipment, but they didn't have gas masks.

The three of them covered their mouths and noses and quickly retreated.

At the moment of turning his head, Tang Yi noticed several small platforms dug out of the smooth cave wall. I saw these small platforms as soon as I entered, but my attention quickly shifted. Now, he found that there seemed to be something inserted in the platform!

No, although the mercury vapor is colorless, after entering this cave for so long, I don't feel the slightest pollution of the air, and there seems to be a slight aroma・・・・・・ "Wait! Although Tang Yi still covered his mouth and nose, he stopped, "I don't think this cave is filled with mercury vapor!" Then he reached out and pointed to something on the most obvious platform.

Tang Wuxin and Wen Jia were both stunned, and they all looked in the direction that Tang Yi was pointing.

At this moment, Tang Yi directly took away the hand covering his mouth and nose!

"I said, this Chongzhen Secret Treasure has left so many clues, it is obvious that Chongzhen also hopes that future generations can come in again and take away this Xuanhuang magic lamp. How could he poison his descendants? ”

A word wakes up the dreamer.

If you think about it, although there are many obstacles set up inside this vault, they are all crackable, and they are extremely difficult to crack. Especially the last door, it seems that if you haven't seen the tortoise shell or don't know the order set, it is impossible to think of the direction where the ball will be placed!

If you really want to poison people, why put up such a big obstacle? It's easy to set up, and it's just a good look! Moreover, wouldn't it be even more unaware that mercury would not be placed so conspicuously and placed in a dark place?

Therefore, the only explanation is that this mercury is necessary to set up this formation, but at the same time, the cave is well protected!

The Big Dipper cave at the top of the cave is likely to be an air hole to keep it ventilated. The last time Tang Yi saw the five-colored brilliance from the cave on the cliff, it was very dim, and it was probably the five-colored brilliance emitted by this bead that was transmitted from the small hole of the Big Dipper.

The three of them took a closer look, and there were a total of eight platforms excavated into the cave wall, each with a fiery red plant.

"Take a look." Tang Wuxin walked in front of a plant and found that this plant was actually rooted in the rocks on the cave wall!

"Loose tail fire armor?" Tang Wuxin was taken aback, and took the hand that was put on his mouth and nose.

After listening to Tang Wuxin's statement, Tang Yi also took a closer look at the plant. Not to mention, the name is really quite vivid, the leaves are spread out like feathers, and the fiery red stems and leaves, the stems are covered with pieces of skin like armor, but they really look like armor covered with dense iron sheets.

"Can this Loose Tail Fire Armor absorb mercury vapor?" Tang hurriedly asked.

"As the so-called fire conquers gold, it is said that this scattered tail fire armor can not only restrain the golden qi, but also absorb the golden qi. The vapor of mercury is naturally absorbed. Tang Wuxin explained, "At the same time, the Scattered Tail Fire Armor doesn't like water the most, so it generally only takes root in the rocks. This Loose Tail Fire Armor can not only absorb golden energy, but also emit a faint aroma like barbecue. ”

This Xia Jia was also relieved, "This thing seems to be part of this formation." ”

"These eight scattered tail fire armors and the Big Dipper in the dome should all be part of the formation." Tang Wuxin nodded and said: "There is such a saying, at the end of the Ming Dynasty, Nurhachi was injured under Ningyuan City, because Yuan Chonghuan set up the formation of scattered tail fire armor in advance, which made it difficult for all the metal weapons and tools of the Jin (Qing) soldiers to play a role. Otherwise, with the comparison of the strength of the two sides, it will be difficult for the Ming army to take advantage. ”

Tang Yi studied history and was familiar with various historical materials of the Battle of Ningyuan, so he naturally didn't agree with Tang Wuxin's statement, but at this time, it was necessary to explore this, but asked: "So, why can't you see this plant now?" ”