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

"Should we go back to the cave we passed just now to see if there are any numbers, so as to calculate the law?" Zhang Yuetong suggested from the side.

"No need." Zhang Qiling rarely responded to what someone other than Nan Xing said, "I've noticed it, no."

Zhang Yuetong: "That is to say, is there a mechanism from here?"

While talking, in the cave that Zhang Qiling tried just now, the stone wall that was originally tightly closed in the middle has now opened up again to the surroundings, gradually returning to its original appearance, and the shovel Nan Xing threw just now has been squeezed into a thin piece. The bronze piece fell into the water below the cave with a "boom".

Nan Xing glanced at the cave, "However, the triggering method of the organ here does not seem to be as gradual as in the previous tomb passage. It is very likely that it is triggered by directly absorbing the hydrogen sulfide emitted by human skin. You see, the shovel just fell a little bit. No response."

Zhang Yuetong pointed to the six caves in front of him and asked, "So, we can only explore one cave at a time?"

Nan Xing and Zhang Qiling looked at each other, then nodded and said, "I don't know what has changed in the law of numbers, so I can only test them one by one first."

Nan Xing and Zhang Qiling have already gone to the entrance of the next cave to test the mechanism.

Zhang Haiyin turned to Zhang Haifeng and Zhang Haisha and said: "Haifeng, Haisha, we can help the patriarch and his wife this time." Then he took out the steel cable coiled around his waist.

This is a steel cable that is only as thick as a mung bean, and it is wrapped around the waist. Only the children of the Zhang family can use it, because once a person becomes an adult, the steel cable cannot bear the weight of an adult.

The three Zhang family children connected the steel wires together and pulled them into one. Zhang Haifeng docked the boat at one of the holes. One end, but was stopped by Zhang Yuetong, he picked up the steel wire and Zhang Haifeng stood at the two ends of the boat, and then looked at Zhang Haiyin.

Because of the elasticity of the steel wire itself and the torque, the people pulling the steel wire on both sides need great strength, so the weight of the person on the steel wire must be lighter.

Zhang Haiyin was a girl, and she weighed the smallest among several people. She understood, walked to the middle of the steel lock, wrapped the steel cable around her waist a few times, nodded to Zhang Haifeng and Zhang Yuetong, and then jumped into the cave.

As soon as he entered the cave, the sharp blade shot out from all directions at the same time. Zhang Yuetong and Zhang Haifeng pulled back violently at the same time, and pulled Zhang Haiyin back to the boat before the sharp blade pierced through Zhang Haiyin.

But Zhang Haiyin's calf was still scratched a few times, Zhang Yuetong quickly helped her check the wound.

On the other side, Nan Xing and Zhang Qiling also just came out of the other two caves, both of which have traps.

Then, the safe passage is in one of the remaining two caves.

Zhang Haiyin adjusted the steel cable around her waist, and she wanted to go again, but was blocked by Nan Xing, "Take care of the wound first."

While speaking, Zhang Qiling flew into the cave and stood still, while Nan Xing was at the entrance of the cave, ready to respond at any time.

Everyone held their breath and waited for a few seconds, but nothing happened.

"Safe." Zhang Qiling returned to Nan Xing from the cave, glanced at the number on the top, "252."

Nan Xing silently read out the numbers marked on each hole, "252,120,462,792,715,364, [-], [-], [-], [-], [-]."

"Nan Xing, can you find out the pattern?" Zhang Yuetong had already helped Zhang Haiyin bandage the wound on his calf, and walked to Nan Xing.

Nan Xing frowned and shook his head, "Currently there is only this set of numbers, so it's hard to judge."

Then, she looked at Zhang Qiling as if asking for help: "Should we go along this safe cave first? It is very likely that we will have to try one by one in the next level."

Zhang Qiling nodded, and Zhang Haifeng on the other side supported the long pole, and the wooden boat slid slowly into the cave.

Everyone in the boat fell into silence.

Zhang Qiling found a blank piece of paper and drew on it.

Nan Xing leaned over to look, and saw that he was drawing Yang Hui's triangle from the apex and filling in the numbers one by one.Nan Xing tacitly found a pen and filled in the numbers one by one with him.

The two of them wrote head to head for a while, and stopped when they reached about twenty lines.

Zhang Qiling marked the numbers at the entrance of the cave on Yang Hui's triangle, stopped in the middle of the drawing, looked at the numbers thoughtfully for a moment, and then finished marking the remaining numbers.

"What's wrong?" Nan Xing stopped and looked at Zhang Qiling.

Zhang Qiling simply indicated on the paper, "These numbers seem to be irregular, but a diagonal line can be used on this triangle to connect other numbers except 252 which has no mechanism."

Nan Xing took the white paper handed over by Zhang Qiling, and frowned slightly, "If you use this line to connect other numbers..."

Like a flash of lightning piercing the darkness of the night sky, Nan Xing suddenly reacted, "Fibonacci sequence! The numbers with tricks are all on the same oblique line that can be added to get the Fibonacci sequence!"

Zhang Qiling nodded and put away the white paper.Nan Xing then turned to the others and said, "The law of numbers has been found, we don't need to test the next hole one by one."

"..." The lonely Zhang Yue looked at Nan Xing and Zhang Qiling with a confused face, "Dads, I still don't understand, can someone explain it to me? What?"

A few minutes later, the wooden boat arrived at the entrance of the next cave. There was a jumping off road. The numbers were 28, 126, 210, 120, 165, 66, and 13. Zhang Qiling entered the cave marked 120 first, and no mechanism was triggered.

The follow-up speed also increased, and about half an hour later, light came in from the front of the cave.

Different from the blue cold light formed by the will-o'-the-wisps in the sacrificial pit before, this time it was a somewhat dim light similar to a light, as if there was a school of bright lights ahead.

With the experience of last time, without Zhang Qiling's order, several people turned off the light source in their hands one after another, and the wooden boat slowly approached in the direction of the light source in the darkness.

When approaching the entrance of the cave, the entire river channel suddenly expanded. If you look over, you can see a huge underground space with no limit in front of you.

Countless butterflies with wings and light sources are flying in the air, and there is mist floating near the water surface, which looks like a fairyland under the illumination of the rainbow light above.

And behind this dreamlike iridescent mist, a huge palace hanging in mid-air can be vaguely seen.

The author has something to say:

The sequence in this chapter is a stalk when I was in high school. At that time, the math teacher first talked about the Fibonacci sequence, and then I heard the sequence of flying garbage, and I laughed out loud on the spot. I was called by the math teacher and stood up. A lesson 233333

Thank you little angels for the nutrient solution irrigated: 33 bottles of the little cutie in the world, 20 bottles of Zephyr Drifting, and 5 bottles of Amo

I love you, yay!