The calm surface of the lake, ripples with the breeze.

Before setting off, they had already figured out how to measure the water of the lake, and they prepared several ropes 100 meters long, as well as dozens of buoys, each of which had a dozen meters of rope falling under it. These ropes are not easy to collect, almost all of them are in Nanmu Village, they negotiated with the villagers for a long time, but to no avail, and finally Yan Cannon came out and replaced these ropes with two forged grenades. Yan Cannon only has one sentence, you have to change this grenade! If you don't change it, you have to change it! I need a rope anyway. These villagers had no way to take the Yan cannon, so they had to obediently hand over the rope.

For every hundred meters of the boat, a buoy was lowered to measure the distance, and from east to west they dropped a total of twelve buoys, which took them half a day, and they made special marks for the purpose of the buoy in the middle. Twenty-five buoys were used from south to north, so that they could basically measure the location of the center of the lake.

After a busy day, when the moon was empty, they returned to Nanmu Village on the shore.

"Luckily, the lake isn't too big!" Zhang Xiaohu looked at the map they had mapped in his hand and said happily. Today, it took me a day to finally measure the location of the center of the lake, and if the lake was larger, it might not be so easy.

As for how to dive underwater, they also have a countermeasure. Each person holds three silver balls, each of which can last for ten minutes, and is filled with oxygen, which should meet their needs underwater.

Early the next morning, they came to the center of the lake by boat full of confidence, Zhang Xiaohu took out a silver ball, and said to everyone: "I'll go down first, I'll see you at the bottom of the water in a while!" He crushed the silver ball, and a transparent film quickly covered his entire body. He threw himself at the water.

Ironic things happened, I saw Zhang Xiaohu's whole person floating on the water, without the slightest intention of sinking, and the shield was still rotating on the water under the buoyancy of the water, which made Zhang Xiaohu in it bitter.

Zhao Zixuan leaned back and smiled on the boat, looking at Zhang Xiaohu who was embarrassed in the film.

Li Yichen said unhappily on the side: "Senior Zhao, you can still laugh out, we are in big trouble!" ”

Zhao Zixuan pondered carefully, and knew what the trouble was, they thought that they could rely on the protective shield to move underwater, but now it seems that this road will not work at all. Because the density of water is high, and the protective cover is full of air, its density is smaller than that of water, and the water will have an upward buoyant force on it. So this method definitely won't work, and they can only think of another way.

As soon as ten minutes passed, the protective cover disappeared immediately, Zhang Xiaohu immediately sank into the water, and Yan Dacang jumped into the water and pulled Zhang Xiaohu to the boat.

"Ahem..."Zhang Xiaohu poured several mouthfuls of lake water, his throat was hot, he gasped for breath, and blamed: "You... You people! Why... Why didn't you pull me earlier... Pull it up! I drank a lot of dirty water! ”

"Yikes!" Zhao Zixuan patted his forehead and teased: "If you don't say it, we really forgot about it!" Everyone on the boat laughed, and the feeling of loss just now eased a little.

Zhang Xiaohu himself laughed for a while, and then said, "It seems that we need to think of another way." ”

King Peter stood up helplessly, stretched out his arms, and sighed, "If there is any other way, I will go down and see if it is okay." ”

King Peter noticed that everyone else was looking at him strangely, and said with a wry smile: "I can stay underwater for five minutes at most, I'll go down and have a look, you still need to find a way." With that, King Peter jumped into the lake and soon dived into the water, where a few bubbles rose from time to time.

Soon, not far away, there was a splash of water, and King Peter returned from under the water, shouting, "The water is too muddy to be seen." Where do you see the underwater light source? ”

"Is the torch okay?" Zhao Zixuan asked teasingly.

"Boy, stop kidding!" King Peter replied angrily.

"You were joking with us first, how can we have an underwater light source!" Zhao Zixuan replied.

"Senior, it seems that we can't continue at all!" Li Yichen said helplessly.

"Yes! It seems that I have to go back first and then make plans. ”

Several people returned to Nanmu Village in frustration, completely out of mind, this kind of underwater work, without a full set of professional tools, there is no way to carry out it.

After dinner, everyone sat around and was silent. Since coming to this world, all they have been thinking about is how to return to their own world. At the beginning, there was Chenyi with them, with a clear purpose, they just needed to do their jobs. But now they are like headless flies, looking here and there, and there is still no clear direction to target. Now I finally found one, but it is like the moon in the water and the flower in the mirror, you can see it but you can't touch it.

While everyone was still silent, the wooden house shook violently, and soon there was a "coax!" in their ears. With a loud bang, I don't know what great changes have happened in Nanmu Village.

After several people drove out of the house, they found that the roads in the village were also full of panicked villagers.

"There's an accident in the ice room, everyone go and help!" Some villagers shouted.

Elder Nanmu took a few heavily armed villagers, who looked like they were asking for guilt, and came to Zhang Xiaohu and the others. He shouted angrily, "Did you do it?" ”

Everyone was confused by this question, how could this kind of thing be thought of as them.

Elder Nanmu pointed at Yan Dacang and scolded, "It must be you, a wicked person, who dare to pretend to be innocent, and only your grenade can have such great power!" ”

Yan Dacang looked angry and said angrily: "here!" You dead old man, don't think about everything to blame on grandpa, how can I still have grenades! ”

Elder Nanmu didn't flinch either, and shouted: "Why not, a few days ago, you used grenades as a threat in the village to snatch all the ropes in the village, and I haven't looked for you for this matter, but you have made such a big move, isn't it true that there is no one in our Nanmu Village?" ”

Zhang Xiaohu was afraid that if the two of them continued to quarrel, other problems would occur, so he hurriedly stepped forward and said respectfully: "Elder Nanmu, this matter really has nothing to do with us, we stayed on the lake all day today, and we have not come out of the house at night, and the people nearby can testify for us, and Uncle Yan didn't lie to you, we really..." Before he finished speaking, he heard a loud noise, as if it was a collapsing sound.

Soon, there were bursts of cries for help from the village: "Go and save people!" Someone is trapped in the ice room! ”

Zhang Xiaohu hurriedly said: "Elder Nanmu, please believe us, it really wasn't us who did it, let's hurry up and save people now!" Elder Nanmu looked at Zhang Xiaohu and nodded slowly: "Young man, I believe you, let's go to save people first, and then we'll settle accounts with him!" ”

Yan Cannon snorted, muttering something in his mouth.

Everyone ran a few steps quickly to the place where the ice chamber was, and found that the ground above the ice chamber had all collapsed into it, revealing a large crater. There are already a lot of villagers carrying stones and debris underneath.

"How many people are down there?" Elder Nanmu asked anxiously.

"Elder, there are more than a dozen people down there, and they went down the first moment the explosion sounded, but who would have thought that ......," a villager cried.

Elder Nanmu said angrily: "What are you crying about, save people first!" ”

"That's right! Hurry up and save people! After speaking, Zhang Xiaohu took the lead in jumping down the pit and began to carry the stones.

Yan Dacang looked at Li Yichen and instructed: "Baby, you go back and bring all our ropes, go and go back quickly!" ”

The rescue operation continued until the afternoon of the next day, and all the buried villagers were found, but unfortunately, none of the thirteen people survived, and all of them were stoned to death below.

What's even more serious is that the explosion was so powerful that it destroyed all the food stored in the entire ice room, which was an important annual ration for Nanmu Village. In addition, after the destruction of the ice house, they also lost a place to store food, and it will be more difficult to survive in the future.

Elder Nanmu felt a little older, and the village changed a lot, as the elder of the village, he felt that he had no face to see his predecessors after death.

Zhang Xiaohu is more concerned about why the explosion happened in this ice room. He'd been here before, and he hadn't found anything in it that could cause an explosion!

This is a sudden accident full of suspense, and the entire Nanmu Village is in a desperate situation.