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

The other three looked at Nan Xing blankly, "What is emitted by human skin?"

Nan Xing was taken aback. Although chemistry has been used in ancient times, the concept of molecular formula has not been popularized yet.

"It can be understood as body odor."

"..." Zhang Yuetong subconsciously raised his arms and smelled himself, "I just took a shower before I came here."

"...It has nothing to do with taking a bath, as long as you are alive, you will have body odor."

"..." Zhang Yuetong's expression became even more confused, "Wouldn't the body odor be worse after death? Could it be that this mechanism is used by the owner of the tomb to prevent himself from picking up the corpse?"

"You call body odor body odor?" Zhang Haiqing's expression was like sleepwalking.

Zhang Haicheng clicked his tongue, "Don't care about the smell of corpses or body odor, if the rest of the organs here have such a trigger mechanism, then can we just try one by one?"

"Or we can go out and catch some wild rabbits and come back to test the mechanism? Then since people emit body odor, animals will also have it?" Zhang Yuetong is still struggling with the problem of body odor.

"It's impossible to know how many such side roads there are. Are you going to catch all the rabbits in the mountain?" Zhang Haiqing squinted at Zhang Yue, as if looking at an idiot.

"Testing one by one will definitely not work. Even if we can catch the rabbits all over the mountain, there will be too little time. We have to start with the mechanism itself." Zhang Haicheng raised his hand again to grope on the wall of the tomb passage, trying to catch any subtle changes.

"Wait, did you hear anything?" Nan Xing said softly, interrupting the discussion of the three.

As if the pause button had been pressed, everyone stopped what they were doing and listened to the movement around them.

pat.

It seemed to be the sound of water dripping on the ground.

The four followed the sound to find it.

pat.

Immediately after the second sound.

This sound was even more obvious than before, as if it was right next to my ear.

"Behind! It's blood! There's a lot of blood!" Zhang Yuetong pointed to the tomb passage they entered just now, his face pale.

I saw that the top of the tomb passage was completely covered by a piece of blood red, and that piece of blood red surged regularly as if it had vitality, and the dripping liquid droplets smashed red flowers on the ground.

pat, pat.

As the blood red at the top of the tomb passage continued to spread, more and more droplets fell down.

For a few seconds, it was like a red rain curtain.

Nan Xing pulled Zhang Yuetong over, "This is the same juice as the tree at the entrance, be careful, don't let that liquid drip on you."

"What kind of tree can have so much sap?! There's blood flowing like a river!" Zhang Yuetong backed away, looking at the red liquid that kept coming towards them from the top of the tomb passage.

"I'm afraid that tree is the liquid drawn from the ground. We must move forward. At this speed, we will soon be surrounded by this liquid, and there will be no residue left after melting." Nan Xing took off his backpack and put it on his head On, jump to the fork closest to the red rain curtain at an almost invisible speed.

"Zhang Nanxing, you are dying!" Zhang Haicheng took a step forward subconsciously, but stopped when he saw the red rain curtain that was already close to Nanxing.

Too late.

嗞-呲-

In an instant, the liquid had spread to the top of Nanxing, and the liquid droplets hit the backpack on her head, making the sound of corrosion.

"Nanxing!" Zhang Yuetong ran towards Nanxing in a panic.

"Don't come over!" As soon as she took a step, Nan Xing's figure flashed, and the next moment she had reached another cave entrance. At the same time, the place where she was originally was completely covered by the rain.

"Help me write down the numbers of the other forks and tell me."

Without time to think about it or ask why, the three quickly dispersed to each fork in the road and read out the numbers.

"210"

"252"

"462"

"Fast forward to the entrance of 462!" Nan Xing said, stepping on the wall and jumping to the fork in the road. He grabbed Zhang Haiqing who was about to get up after reading the numbers, rolled on the spot, and the two entered the fork.

At this time, the blood-red rain curtain stopped abruptly halfway to the entrance of the cave.

All returned to calm.

Zhang Haiqing sat on the ground, still not recovering from the close call just now.

Zhang Haicheng and Zhang Yuetong looked at Nan Xing and Zhang Haiqing with blank faces.

After a while, Zhang Yuetong realized: "This side road is really safe!"

Nan Xing and Zhang Haiqing stood up from the ground.

At this time, Zhang Yuetong and Zhang Haicheng also bypassed the red juice that half blocked the entrance of the cave and entered the side road.

Zhang Yuetong couldn't wait to ask: "Nan Xing, were you injured? You don't know that I almost died of fright when the blood was spilled on your head just now."

"I'm fine, the liquid didn't drip on me." Nan Xing said, pulling away the backpack that had been half corroded just now, and took out the books and blueprints that were mostly destroyed inside.

This is the information that Zhang Qiling left for her before she set off. She never thought about it but saved her life at a critical moment.

Picking up the undamaged things and packing them up again, Nan Xing lit up the fire and pointed to the depth of the fork, "Let's go."

Zhang Yuetong also played a trick and caught up with Nan Xing, "Speaking of which, how did you judge that this fork is safe?"

"The numbers here are arranged according to Yang Hui's triangle in "Nine Chapters of Arithmetic". There are forks in the organs, and the numbers are the numbers in the middle of the even-numbered rows in Yang Hui's triangle." Nan Xing answered concisely.

"Yang Hui Triangle?" Zhang Yue had a question mark on his face, and was afraid of being despised by Zhang Haiqing if he asked too much, so he fell silent in a rare way.

"What is Yang Hui's triangle?" Zhang Haiqing's voice came from behind.

Zhang Yuetong looked back at Zhang Haiqing.

Before Nan Xing could figure out how to explain it, Zhang Haicheng took over the topic, "I also watched "Nine Chapters of Arithmetic" a few years ago, and recalled that the numbers at the fork just now are indeed in line with the number arrangement law of Yang Hui's triangle."

"Really? Then you tell me what the Yang Hui Triangle is." Zhang Haiqing turned her head and leaned towards Zhang Haicheng.

"Yang Hui's Triangle is an ordinary-looking number triangle. In fact, it has some very wonderful and even mysterious characteristics. I won't be able to explain it to you for a while. Let's talk about it later." Zhang Haicheng explained to Zhang Haiqing, but his gaze It always landed on Nan Xing in front of him, and the expression in his eyes was unclear.

Soon there was another fork in the front, and Nan Xing squatted down one by one to check the numbers, "We walked all the way, and I have noticed the numbers at those forks. The first fork with a mechanism, the number is 2. The second is 4 and 6. The third one is 15, 20 and 21. I won’t go into details later, they all conform to this rule.”

"Wait, do you still remember those numbers?" Zhang Yuetong was shocked.

"Yeah." Nan Xing nodded to end the topic, stood up and said three people behind him, "The number at this fork is 1716, it's safe."