Eating and drinking, Chen Yukou provoked Xuanhe to "popularize" some ancient tomb knowledge for Tongyan, such as: there are organ traps, poison gas, and secret arrows in the ancient tomb.

What he knows is naturally exaggerated, either from the TV or from the novel.

He thinks that the actual ancient tomb is definitely not so mysterious?

The most mysterious ancient tomb that the mining team encountered was the large tomb of the Crystal Race, but there was only a magical array of light and shadow, which only trapped people and did not hurt people.

Tong Yan listened with great gusto, and she glanced timidly at Shimen, a few tens of meters away, and exclaimed: "Brother Yu, look, there is light over there!"

Chen Yu heard the sound and saw that there was a fire reflected from the stone gate. He was surprised and said, "Is there a stone that can shine inside?"

Feeling that the waiting time is almost up, Chen Yu got up and put on a big backpack, jokingly said: "Let's go, let's go to the grave to hunt for treasures!"

The two came to Shimen, looked inside, and saw that the tomb passage behind Shimen was brightly lit, and oil lamps were lit at intervals on the stone walls of the tomb passages on both sides.

"Brother Yu, there are no ghosts, Yan'er is afraid, let's not go in!"

Tong Yan hid behind Chen Yu, tugged at the hem of his clothes, and said with a trembling voice.

Chen Yu turned around and took the shivering Tong Yan into his arms, then stared at the brightly lit tomb passage for a while, before jokingly said: "Girl, don't be afraid, this is the owner of the tomb opening the door to welcome us."

"Brother Yu, there may be a ghost in it, let's go, don't look, let alone go in!"

Tong Yan was really timid.

The dust-covered tombs suddenly lit up with oil lamps, what else can there be if they are not haunted?

Chen Yu smiled and scratched Tong Yan’s nose, pretending to be sullen, and yelled: “There are no ghosts in the world at all. If you don’t know what you don’t understand, you have to use your brain. Don’t be superstitious. ."

"But, but Yan'er doesn't bother to use his brain, and, moreover, Brother Yu also said that entanglement is a disease, and it must be cured!"

Tong Yan said cowardly.

"Silly girl, tell you, this kind of oil lamp ignited by itself is not caused by ghosts and gods. Scientists in our hometown have long worked out the reason..."

Chen Yu has never believed in ghosts and gods, and the oil lamp that suddenly ignites in the tomb passage can indeed explain it.

In order to dispel Tong Yan's fear, Chen Yukou provoked Xuanhe to explain to her why the oil lamp in the tomb passage would spontaneously ignite.

As we all know, the ignition point of white phosphorus is very low, only about 40 degrees Celsius, and it is easy to ignite spontaneously in the air.

In addition, Chen Yu once heard Ye Chunfang, a sister Magnum, mentioned a metal with a lower ignition point, cesium!

The ignition point of cesium is less than 30 degrees Celsius, and it is easier to ignite spontaneously in the air, thus lighting a fuel lamp.

Ye Chunfang also said that there are many qualities on Fengyun Continent that are not available on earth, and it is not clear that there are substances with a lower ignition point.

Tong Yan heard it strangely, she nodded slightly, and then asked with doubts: "Why didn't those light up before, why did they light up after so long?"

Chen Yu replied without hesitation: "I know you will ask, the truth is actually very simple. The tomb is sealed and there is no oxygen in it."

"After the stone gate is opened, the air will circulate, the oxygen will get in, and the oil lamps will burn only when there is oxygen."

"What is oxygen?" Tong Yan asked curiously.

Chen Yu stared at Tong Yan with a smile for a long time, and for a while, he would not know how to explain to her what oxygen is.

After thinking and thinking, he joked: "Oxygen is a gas that can be burned. It is hidden in the air. To put it bluntly, it is the fart of people and animals, and fart can also be burned."

"Ah?" Tong Yan took Chen Yu's Hu Kan's words as true, exclaimed and asked: "Then why can't you smell the smell? As far as Yan'er knows, farts are smelly."

"You don’t understand this. As the saying goes, loud farts don’t smell, stinky farts don’t make any noise, and the stuffy farts are so absorbing, leaving only those non-smelling farts turning into oxygen in the air, don’t Entangled, entanglement is a kind of disease, cure, hehe."

Chen Yu had a smirk, his mouth full of flickers as he ran the train.

"Well, Yan'er is not tangled!" Tong Yan nodded slightly, and then stared at Chen Yu with adoring eyes.

"Brother Yu knows so much, he is the smartest man in the world."

Chen Yu nodded with a smug smile, but said in his heart: Brother not only knows a lot, but also can fool you, hehe.

After waiting for a while outside Shimen, Chen Yu found a few football-sized stones and threw them into the tomb, throwing them to the road test agency.

There was no abnormal reaction in the tomb passage, and Chen Yu led Tong Yan into it with confidence.

Entering the tomb passage, Chen Yu also kept a special eye on the stone wall of the tomb passage with a crystal sword.

Even if they encounter any magical formation in the tomb, they can also follow the traces drawn by the crystal sword to exit.

The stone material on the stone wall of the tomb passage is very special, and the crystal sword makes a dazzling sound of "chacha" when it is drawn on it.

The sound also produced an echo effect, which sounded particularly horrible.

Tong Yan timidly grabbed Chen Yu's skirt, looked around nervously, and said in a trembling voice: "Brother Yu, or let's go out, Yan'er doesn't want a baby!"

The previous excitement was swept away, replaced by endless fear, Tong Yan was really scared.

Chen Yuyi is bold and very nervous: "Don't be afraid, it's okay, there is a brother, and you can find the baby and go out safely."

"Then, okay, Yan'er believes in Brother Yu and listens to what Brother Yu said."

Tong Yan answered timidly, but still clinging to Chen Yu's skirt.

The path of the tomb was not long, only one hundred and eighty meters, and the two of them came to the end while talking, and a huge iron door blocked the way.

Tong Yan wanted to persuade Chen Yu to quit again. Seeing him looking at the giant iron gate with great interest, she swallowed the words that came to her mouth again.

The huge iron gate with a height of more than three feet is dark red and looks very old and thick, revealing an endless sense of historical vicissitudes.

Chen Yu looked around carefully, then stared at the huge iron gate for a long while, hesitating to tell Tong Yan to switch to inner breathing and hide behind him.

Be careful to make the Wannian Ship, Chen Yu is really afraid that the tomb behind the big iron door is sealed, and poisonous gas will gush out once it is opened.

After careful consideration, Chen Yu decided to open the tomb door.

He himself is not poisonous, and Tong Yan has a red skirt and a treasure to protect him, so he wouldn't be too dangerous.

For safety's sake, Chen Yu told Tong Yan to hide away when he opened the tomb door.

"Brother Yu, you must be careful, if it doesn't work, let's give up."

Tong Yan stepped back and reminded Chen Yu that she wanted to quit immediately and don't want anything more.

"Well, don't worry, it's okay."

Chen Yu turned his face to Tong Yan with a confident smile, "Brother is the immortal God of War, the smartest man in the world, brother is omnipotent, hehe."