Macon and the other two children looked at each other and immediately followed Du Dian.

At this time, the other children were also divided into small groups one after another. Most of them were like Du Di'an. They used a few people in their room as a small team, and some were medium-sized teams composed of two or three small teams. The rest of the hesitant people in the group joined the person who first proposed unity, forming a large team of nearly 100 people.

In the desert, more than 300 people gradually spread out like swarms of ants.

"Why are you walking this way, the sun is so big!" Macon raised his hand to cover his eyes, unable to open his eyes from the sun. He had been here for less than half an hour, and he was already sweaty and hot.

"There seem to be the least number of people in the same direction as us." Another brown-haired and thin child observed the surroundings and said, his name is Sham, one of the four in the dormitory. A person who can fold bedding.

"Even if you avoid competition, you don't have to bask in the sun!" Macon said with a wry smile.

Du Di'an said in a low voice: "The climate of the desert has a large temperature contrast during the day and night. Although it is now the black and dead season, which lasts the longest among the three seasons, it is also the season with the highest temperature, but at night, the temperature here will still drop to The temperature at the beginning of the black snow season, it is afternoon, we are going in the west direction, the sun will keep drying here, and at night, the sand in this direction will be warmer than other directions.”

When the three heard Du Dian's solemn explanation, they were a little stunned. Macon said with a bitter face: "Even if you consider the problem of heat preservation at night, you don't have to stand in the sun now, it's easy to lack water, and the gain is not worth the loss. Besides, how do you know that the temperature in the desert will drop at night, I feel My feet are on fire, how can the temperature here drop!"

Sham and another child named Zach are also curious, how can it be cold at night in such a hot place?

"You will know at night." Du Di'an did not explain the heat absorption and heat dissipation effects of sand grains. The knowledge involved was not taught in the course, and it would inevitably lead to doubts, and the concept of heat absorption and heat dissipation was very important to them. Can't even understand it.

"The water source can be found. The only thing we need to pay attention to is that we must not get sick!" Du Di'an solemnly warned the three of Macon.

Hearing his firm words, Macon, Sham, and Zach was a little surprised, but they had already convinced Du Di'an, and they didn't question them, they were just extremely curious. In this desert full of sand, how could Du Di'an assert that they would be able to find them? water source?

It didn't take long for the four of Du Di'an to go straight into the desert, completely separated from the other teams around them, which made Mei, Sha, and Zha nervous, but at this point, they could only continue to believe in Du Di'an. Never let them down.

"Remember what was taught in the course, how to find water in the desert?" Du Dian stopped and looked around the road ahead.

Mei, Sha, and Zha looked at each other. Macon said: "I remember first looking for a cool sandy place and digging under the sand. Usually, the water source can be found."

Du Di'an raised his finger and pointed to a place ahead, where there was a raised sand slope, the side was not exposed to the sun, and because of the angle, even if the sun was in the east in the morning, it could not be found, and it would only shine for a short time at noon, "Go there and have a look." He stepped on the sand, walked over first, touched the sand here, and it was cool.

When Mei, Sha, and Zha saw this, they couldn't help but be overjoyed and squatted down to prepare to plan.

Du Dian waved his hands and said, "Tang your hands first, don't scratch your hands by the stones inside." After that, he tore a piece of fabric from his cuffs, wrapped his hands around him, and squatted down to start digging sand.

Macon smiled: "It's still as thoughtful as you think."

The three of them followed suit, tearing off the fabric, wrapping their hands around them, and squatting down to plan sand.

I have to say that the three-month endurance training has greatly improved the physical strength of the four children. Walking for four or five miles under the scorching sun, there is still room for sand digging at this moment. However, this is also a gamble. They will become dangerous by digging out the water source, and the remaining physical strength may not be able to support them to find the next place where there may be a water source.

Therefore, even though Du Di'an was a little nervous, especially after digging to a depth of more than half a meter, he still didn't touch the wet sand, and the four of them sank slightly.

"It's over, change to another place." Du Di'an stopped decisively. With this trend, it is possible to touch the wet sand at least one meter deep, and to get water, at least three meters deep, this It's still the most optimistic situation. It can only be said that this place is not good.

"I've been digging so much, so I just gave up?" Macon said in disbelief.

Du Dian said with a sullen face: "You can't bet your hope on it once, follow me and move on!" After speaking, he no longer had any nostalgia, and turned around and stepped forward.

Macon and Zach were a little reluctant to give up. Sham stood up and said, "Let's go, Dean is right, you can't bet your hope on it once." After that, he followed in Du Dian's footsteps.

Macon and Zach sighed, only to shake the sand from their knees and follow.

However, when God closes a door for you, he also releases a dog for you. Not long after Du Di'an and the four left the digging pit, Zach, who was at the back, screamed in vain, jumped half a meter high, his face paled, and hurried towards Du Di'an.

Du Di'an, Macon, and Sham looked back, and couldn't help screaming in fright. They saw a snake nearly two meters long drilled out of the sand, with yellow-brown snake skin all over its body, and its scales reflecting icy cold under the sunlight. Lustrous, under this scorching high temperature, the three of them only felt chills everywhere.

"Run!" Du Di'an first came back to his senses, roared, turned, and ran.

Mei and Sha reacted and hurriedly shouted to keep up.

With a thud, in vain, Macon ran so fast that he stumbled on his feet and threw himself on the sand.

Du Dian, who was running at the front, heard the movement behind him and couldn't help but look back, and immediately saw Macon fall to the ground. Ten meters behind him, the yellow-scaled snake twisted and swam, and the situation became precarious. Gritting his teeth sharply, he turned and rushed towards Macon.

Sham and Zach were stunned for a moment, and they also noticed the fallen Macon, their expressions changed, and they looked at the twisting yellow-scaled snake again, their expressions became extremely ugly, and they hesitated for a while.

At this moment, Du Dian had rushed to Macon, grabbed his arm, and roared: "Stand up!"

Macon took advantage of his strength to get up and looked back. The yellow-scaled snake was already two or three meters behind him. It only took one jump to jump. Does snake fast?

With a swoosh, the yellow-scaled snake slammed towards Macon, with sharp fangs in its large mouth.