The sound of stones colliding echoed in the cave, listening to the endless collision sound Duan Xue Rong's little face turned pale, and she unconsciously retreated backwards, trying to stay away from this bottomless pit.

Xiao Lingfeng said, "This seepage hole is very deep, at least 200 meters or even more deep, and the deepest seepage hole in the world seems to be nearly a thousand meters deep. ”

"If you fall from here, you will definitely die, so I have to be careful when I walk from here, once I fall in, I won't even be able to find the body. ”

Xiao Lingfeng held Duan Xuerong's hand, and the girl was indeed trembling unconsciously when she passed by the infiltration point.

"Isn't a few hundred meters too deep, a pit should not be more than 50 meters deep. ”

"The concept of 50 meters is very general, when Brother Feng threw the stone, it lasted for more than 20 seconds, according to the analysis of the object's descent speed, this cave is indeed 200 meters deep. ”

"Actually, it's very simple to know how deep the cave is, just let Brother Feng go down and try it. ”

"Yes, jump down directly, Brother Feng is optimistic about you!"

Xiao Lingfeng didn't pay attention to the barrage, but continued to walk along the cave, walked for a long time, and finally saw a glimmer of light in front of him, and there was still a lot of water on the ground.

The water in the cave reflected that dazzling shining, and there seemed to be something above the cave.

"What is there?" Duan Xuerong wondered, "Is it an exit?"

"It was like a cave opening, and I could see the light shining from above the cave, so let's hurry over and see if we can climb up from here. ”

I thought the exit was directly ahead, but I didn't expect there to be a skylight, but when I walked in, I found that it was indeed an exit, and the light shining in from the pit above formed a dazzling pillar of light.

Some fine dust fluttered in the pillar of light, which also made the pillar of light appear more solid, and the scene was really dazzling.

The beam of light fell overhead and landed on a stone, surrounded by some standing water, and the surface of the water reflected a bright light.

Xiao Lingfeng came to the bottom of the cave and looked up, "This cave entrance is quite large, from here to the entrance of the cave is about 3 meters high, through the mouth you can see some green branches, on which are some plants. ”

"We seem to have only one exit, the cave in front of us is basically useless, but there is a glimmer of light in the water at the end, I bet there must be a cave over there, and it is sometimes connected to the outside, but it can be difficult to get through the water. ”

"I didn't know how deep the cave was, I couldn't breathe without diving equipment in the water, I would drown in it if the passage was long, and my life would be in danger if I accidentally scratched by a rock, so I chose the exit overhead. ”

Xiao Lingfeng analyzed the situation in an orderly manner, and now the safest exit is the cave at the top of his head, but there is a difference of 4 meters from the top, combined with Xiao Lingfeng's height, it is a little more than 2 meters to stretch out his hand.

If it's a jumper, maybe you can really go up from here!

I tested it, and the result was very sad to find that I couldn't go up at all, and the top of the cave didn't look high, but the actual height was much higher than expected.

"I'm going to make a joke, Brother Feng is actually planning to jump out from here, do you think it's possible?"

"You have to use a climber, and if you climb, you can climb out, but unfortunately there are no vines or anything like that. ”

"Doesn't Brother Feng have a rope? you can climb it up with a rope!"

"What about dreams, the hole is so small, how can you throw the rope out of the hole?"

"You can't fix it if you throw it out of the hole, and if you pull it hard, it will pull the rope down. ”

"In other words, we are not optimistic that Brother Feng can use the rope to escape?"

Xiao Lingfeng pursed his lips disapprenously, "My idea is to put a stone on one end of the rope, and then throw it up hard, if you are lucky, you can swing on the branch, the height of this branch is 6 meters, and its thickness can fully bear my weight." ”

After speaking, Xiao Lingfeng began to operate, there were many gravel blocks in the cave, found a stone like a dumbbell, tied it and began to throw it up.

Everything is about a probability, just like playing basketball, more than 10 meters away from the basket, throwing the basketball backwards, there will be a very low probability of scoring a goal.

Xiao Lingfeng's operation is more difficult than playing basketball, even if he throws the stone from a cave with a diameter of 1 meter, he must also make it hang in an arc on a branch 6 meters above the ground.

After 3 minutes......

"233333333, Brother Feng, you're joking, watching the live broadcast doesn't watch you throw stones all at once. ”

"If you can't hang up, you can't hang up, there's nothing more pleasant than watching Brother Feng eat deflated, Brother Feng continues!"

"I really can't stand it, you can let the girl stand on top of you and stack the Arhats, your heights overlap to 3.5 meters, and the girl can reach the stone wall as soon as she stretches out her hand. ”

"Your idea is very good, but my sister can't stand on Brother Feng's shoulder steadily, and even if she stands, she can't get the cave above her head. ”

Most people in the live broadcast room were mocking Xiao Lingfeng, his probability was too low, and finally after dozens of attempts, the stones of the rope finally went around the trunk.

Xiao Lingfeng slowly relaxed the rope, "After testing it so many times, I finally wrapped the stone around the trunk of the tree, so it can't be fixed, I have to let the stone above slowly slide down to form a double-layer rope." ”

"The double rope can be firmly fixed to the fork of the tree, even if I climb up, the rope will not fall off because of the weight, and the branch is quite thick and should be enough to bear my weight. ”

Xiao Lingfeng said again, "Of course, if conditions permit, some crossbars can be fixed between this kind of double-strand rope, just like the rope ladder used in helicopters, so that it will not be too difficult to climb and save effort, but now I don't have branches or anything like that, so I can only give up." ”

This place is not very far from the pothole above, Xiao Lingfeng jumped, and the height could reach more than 3 meters, and he only needed to climb it with both arms.

The outside world is full of vibrant green, Xiao Lingfeng pulled Duan Xuerong and Lingling up together, from dark to dazzling, it is indeed quite shocking, especially this new visual impact, which makes people unable to help themselves for a long time.

Lingling tilted his little head and stared curiously, and the birds and dragonflies in the trees attracted the attention of little Lori.

"Sure enough, it's still good on the ground. Duan Xuerong opened her arms to embrace the fresh air, and then said luckily, "It's good that you picked up this backpack, otherwise we would really be sad this time." ”

I thought it was useless, but Xiao Lingfeng used it, vodka ignited the fire, and the rope allowed them to pass through many insurmountable chasms and obstacles.