[Grave Raiders Notes bg] Lost Notes 2: Heavy Fate

"Look at the instruments hanging on the wall inside this cabin." Nan Xing pointed to the cabin of the leading ship in the relief mural.

The three of them looked along, and saw that what was carved on the wall was a U-shaped transparent tube connected to a copper ball, with a total of ten scales, which were marked according to the heavenly stems.

Zhang Haicheng let out a "huh" and said, "During the reign of Emperor Kangxi, Nan Huairen, the minister of the Ministry of Industry, designed an instrument that can display the temperature of the weather, which is very similar to the one in this relief mural."

Nan Xing nodded and said, "This is the thermometer designed by Nan Huairen. The temperature corresponding to the scale "ji" is exactly the temperature of the hot springs under the two holes in the tomb."

After the other three listened, they all looked at Nan Xing.

They were no longer surprised, and seemed to have gotten used to Nan Xing's jumping thinking from time to time.

After a few seconds of silence, Zhang Yuetong finally couldn't help asking, "...Nan Xing, how do you know the temperature of the hot spring in the cave?"

Whenever this time is the most troublesome moment for Nan Xing.

These concepts in modern physics are really difficult to explain.So unless it was absolutely necessary, she tried to only talk about the conclusion, but did not repeat the reasoning process.

"You really want to hear it?"

Zhang Yue nodded.

Nan Xing had to try his best to explain in an easy-to-understand manner, "Every 100 meters deep from the ground, the temperature increases by about 3 degrees. The hot spring is 1288 meters away from us, and we are 40 meters above the ground, a total of 1328 meters, so the hot spring is 40 degrees higher than the temperature. It is February and it is night, and the temperature in Mengding Mountain is about 0 degrees at this time, so the temperature of the hot spring should be 40 degrees, and the thermometer "ji" in the mural is converted to exactly 40 degrees."

Zhang Yuetong: "..."

Leaving aside this set of theories that come at hand, is this mental arithmetic ability achievable by the human brain?

"So, you mean...the hot spring in the hole is the real key to open this door?" Zhang Haicheng asked.

"Well, the key now is how to get the water inside." Nan Xing looked down at the two holes on the ground.

The ropes in the hands of the four people add up to less than 100 meters, even if all the clothes of the four of them are cut to make a rope, it is far from enough.

The situation fell into an unresolved state again.

Zhang Haicheng and Zhang Haiqing began to search in the tomb for tools that could replace the rope.

"How long have we been down here?" Zhang Haiqing asked suddenly.

"Nearly four days." Zhang Haicheng said while searching for the funerary objects in the tomb.

Time is running out, the value of the funeral objects in this tomb is not high, and there are not enough tokens for them to go wild. They need to open this door and go deep into the main tomb.

"We don't have much time left." Zhang Haiqing murmured aside.

Zhang Haicheng hummed vaguely.

"Nan Xing, calm down!" Accompanied by Zhang Yuetong's exclamation, Nan Xing was ruthlessly carving down on the mural with a dagger.

Zhang Haiqing saw it anxiously, and went to grab Nan Xing's wrist, "This relief mural is an important clue, no matter how impatient you are, you shouldn't take it out on the mural."

"I'm not venting my anger," Nan Xing glanced at Zhang Haiqing's hand on her wrist, and said, "The thermometer on this mural is missing one thing."

Zhang Haiqing let go of her hand embarrassingly, and asked, "What is it?"

While continuing to carve on the mural with a dagger, Nan Xing replied: "The water column, the water column indicating the temperature."

After the words fell, the water column had also been replenished by Nan Xing.

"Boom—"

There was a dull sound from deep underground.

It seemed that something had woken up underground, and even the entire tomb seemed to be trembling slightly.

All four of them stared at the two holes in the ground.

I saw wisps of white smoke coming out of the hole.

Immediately afterwards, a jet of water rushed straight to the top in an instant, washing the top of the tomb, and the splashed water droplets sprayed on the four people.

"Nan Xing! It's a success, it's a success!" Zhang Yuetong wiped the water off his face and said excitedly.

"boom!"

Another bang.

The entrance to the tomb was completely closed by a fallen boulder.

"There is no way out." Zhang Haiqing whispered.

Although the hole on the ground was only the size of a fist, the speed at which the hot spring water spewed out was getting bigger and bigger, and it was already up to the knee in a blink of an eye.

"Hurry up and open the door." An intuition flashed in Nan Xing's heart, and the next situation would be very unfavorable.

Zhang Yuetong took out his own water bottle, filled a pot, walked to the door, faced the small hole on the door, and started pouring water into it.

But the hole is too small, and the inside is twists and turns, so not much can be poured in.

The door still wouldn't open.

Zhang Haicheng and Zhang Haiqing also approached, and they took turns to try, but still failed.

"I understand." Nan Xing looked at the opening of the door, "To open this door, we can only wait for the hot spring water to pass through the fine holes on the door, and use the water pressure to press the water in."

"Looking at the speed of the water, we shouldn't have to wait too long." Zhang Haicheng glanced at the water that was submerged up to his thighs, "But we have to prepare to hold our breath for a while."

"Look, what's coming out of that hole?!" Zhang Yuetong looked nervously at the hole on the ground, and returned to Nan Xing.

Nan Xing looked over.

I saw that in the hole, along with the water flow, countless thin red lines were washed out.

After those thin lines were washed out, they immediately twisted and rolled towards the four people.

When passing Zhang Yuetong's backpack that fell on the water surface, those silk threads got in from all directions in an instant, and the backpack was eaten away in a blink of an eye, and there was no residue left.

"Not good! This red nematode may have been hungry underground for hundreds or thousands of years, and now it eats whatever it sees!" Zhang Yuetong pulled Nan Xing back with a pale face.

At this time, Zhang Haicheng quickly pulled out the dagger tied to his leg, swiped at his hand, and blood dripped into the water.

The red nematode quickly moved away the moment it encountered the blood in the water.

But the Qilin blood was quickly washed away by the water, and the red nematodes surrounded it again.

"Zhang Nanxing!" Zhang Haicheng yelled her name at Nanxing.

He is urging Nan Xing to do bloodletting too.

Nan Xing slashed the dagger in his palm with his backhand, and the blood flowed out.

But after the red nematode came into contact with Nan Xing's blood, instead of moving away, it frantically swam towards the direction of the blood.

"Go to Zhang Haicheng!" Nan Xing shouted at Zhang Yuetong.

Zhang Yuetong hasn't reacted yet.

Nan Xing picked up Zhang Yuetong's belt and threw it towards Zhang Haicheng, Zhang Haicheng reached out to catch it.

Immediately afterwards, she stepped on the wall and was about to jump towards Zhang Haicheng and the three of them, but saw the nematodes swarming into huge spheres under the water, smashing towards them from the front, blocking Nan Xing's way.

With a kick on the wall, Nan Xing jumped out of the red nematode's encirclement, and then quickly tore off a piece from his clothes and wrapped it around the wound.

"What happened to your blood?!" Zhang Haicheng looked at Nan Xing who jumped to the other side of the tomb in disbelief.

The hot spring water reached the neck in a blink of an eye, and before they had time to say more, they all sank into the water after taking a deep breath.

At this time, the surface of the water had already submerged the small hole of the giant door, and only the faint clicking sound could be heard from the giant door.

Zhang Haicheng and Zhang Haiqing went over and pulled the door.

The door opened.

The two quickly got in.

Zhang Yuetong finally recovered from the accident, floated up from the water, and stretched out his hand towards Nanxing, "Nanxing, come quickly!"

And at this time, the ball-like nematode slammed towards Nanxing again.

Nan Xing stepped on the wall again and swam to the other side.

"Zhang Yuetong, come in first and wait for her." Zhang Haiqing left a gap in the door and urged Zhang Yuetong.

"No, there are too many nematodes over there. It's not an option for Nan Xing to fight alone like this. I have to help her." Zhang Yuetong ran towards the other side of the tomb without looking back.

Then, she drew out the dagger and swiped hard at her hand.

Blood flows into the water.

The nematodes that were originally surrounding Nanxing suddenly seemed to be attracted by something.

Swimming towards Zhang Yuetong like crazy.

At this time, the huge door on the wall was closed heavily.

Zhang Yuetong turned his head and shouted, "Haicheng, Haiqing, why did you close the door?!"

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