There is no way my vest will fall off!

The mural depicts the origin of the Zhao family's civilization - the Taiyi Forest, which is now the city of Sui.

The city of Sui and the jungle are different from the civilizations born in the great river basin in the past.

From the perspective of murals, they are good at stargazing, and have made great achievements in riding and archery and mural painting crafts. Until the Wei Dynasty, almost every remaining dynasty had their traces, but whether they rose like a flash in the pan, or Sudden disappearance, everything is full of mystery.

Seeing this, Xu Qian couldn't help but think of a word - Mayan civilization.

In a sense, the two are really similar.

It's just that compared with the great reputation of the Mayan civilization on the earth, the Zhao family seems to be much more low-key.

If they hadn't entered this curtain hole, maybe the knowledge of Zhao family in this life is only a few pages in the book.

It took nearly two hours to scan and record the twelve murals. As time passed, the temperature in the cave dropped several degrees.

"Brother Yang, why do I feel that it's getting colder and colder?"

"It's... close to zero."

"I said why it's so cold, my feelings are in the refrigerator."

Xu Qian squatted down and took a piece of gravel from the ground——[Qi Hanshi]. You can roughly guess its function from the name.

It’s just that this kind of stone only appears in places of hunger and cold, and was often used in ancient court icehouses. Before the emergence of ice making methods, its value was comparable to that of pearl emeralds, which belonged to the category of luxury goods.

But here, like Chinese cabbage in the vegetable market, it is common and cheap.

It seems that the statement in the unofficial history that the Zhao family is as rich as the enemy is not groundless.

At this time, Assistant Zhang noticed a fist-sized pearl on the platform under the stone statue. The pearl was round and jade-like, glowing with a gorgeous streamer, with a different kind of beauty. Seeing this, he couldn't help stretching out his hand.

"boom--"

In an instant, it is not an exaggeration to say that the sky collapsed and the earth shattered. Countless dust fell from the sky, and the entire curtain hole seemed to be shaken.

"Professor Shen—" Assistant Wu quickly looked at their professor.

Xu Qian turned his head, and saw that the half-meter-high platform suddenly sank a certain height, and the stone statue stood beside it, surrounded by helpless Assistant Zhang.

"what happened?"

"what happened?"

Everyone was attracted by the movement in front of them. When they subconsciously stepped forward to support, they didn't expect the high platform to drop another height.

"professor--"

"Don't go there!"

The moment Brother Zhang's voice fell, the five-meter-high platform with the stone statue as the center suddenly cracked, and the few people standing in the center retreated almost as if fleeing for their lives.

In a few seconds, a huge red glowing tiankeng replacement stone statue appeared in front of everyone.

All this happened so suddenly that no one came back to their senses. No one thought that such a thing would happen, let alone that there was a mechanism under here.

The leader, Brother Yang, walked forward and looked at the tiankeng with a flashlight. He bent down and looked at the bottom. There were red ropes tied with copper coins around the stone wall, but the red light seemed to be a pile... powder?

Xu Qian has already recognized that thing - Hongying.

The trio also recognized this thing like him, especially the young man named Zuo Yu, his brows were so tightly furrowed.

"Take someone down to have a look." Brother Yang understood the professor's expression instantly, and called a few people to bring their tools and let them go down to explore the way first.

But before going down, they threw a pathfinding drone first, and only after making sure that there was no danger did they let people strap on their equipment and go down.