The Super School Doctor

Xiong Yu simply drew a topographic map on the ground and said solemnly: "The good news is that I have probably calculated the location of the dark river. The bad news is that the closest straight line distance from the dark river to us is 500 meters."

While talking, Xiong Yu simply marked the location of them and the underground river on the topographic map.

Sun Lanxiu frowned, shook her head and said, "We only have seven grenade bombs, and we can't blow up a distance of 500 meters."

Xiong Yu pondered for a while, then smiled slightly and said, "That's not necessarily true. Just listen to my command. I'm 70% sure that I can walk into the dark river."

Sun Lan asked suspiciously, "What are your plans?"

Xiong Yu pointed to the entrance of the cave and said, "First move away the rocks that can be moved at the entrance of the cave. How much can be moved? We will explode the big rocks that cannot be moved. The first step we need to do now is, First, collect the grenade bombs 20 meters from the entrance of the cave. When the cave collapsed, there were many people from the Waden family who were killed within 20 meters of us. The bombs on their bodies could be recycled."

Sun Lan recalled the scene before the explosion, and remembered that the mountain collapsed at that time, and the people of the Wadden family saw the molten volcano in front of them, and many people began to run back chaotically.

Calculated based on the situation at the time, there were indeed many members of the Waden family who were killed around their location.

Xiong Yu didn't speak any more. He walked directly to the entrance of the cave and began to clear away some of the stones that were blocked in the entrance of the cave. Most of the stones that fell from the top of the cave can be moved.

Sun Lan and Wang Yunxiu also came to help with the move, but Xiong Yu turned around and said to Wang Yunxiu, "Don’t do these rough jobs. You haven’t practiced martial arts. You are weak. Try to save your strength. Once we reach the underground river, we will swim across the river. At times, it will consume a lot of physical strength, and you will not be able to stand it."

Wang Yunxiu is also a smart woman. After listening to Xiong Yu's words, she stopped and sat in a place to rest quietly. She knew very well that her rest is the greatest help to Xiong Yu.

Xiong Yu and Sun Lan cleaned up the stones very quickly. They quickly cleaned up the stones at the entrance of the cave, and then they continued to clean the stones along the direction of the cave that had collapsed.

However, after they cleared a distance of about four meters, they found a stone of about ten tons that blocked the entire cave.

When the cave collapsed, there were large rocks and small rocks. When encountering such a huge falling rock, it could only be broken by grenade bombs to pass.

Xiong Yu didn't hesitate, he took out two grenade bombs, tied them together, placed them in a place where the big rock was loose, and detonated them.

Sun Lan asked, "Why do you use two grenade bombs directly?"

Xiong Yu pointed to a gap that was exploded on the huge boulder in front of it, and said, "If you only use one, you might not be able to explode this stone at all. It's better to use two together."

After blasting the big boulder, the road behind was much smoother, and he walked ten meters further without encountering any major troubles.

After walking about 13 meters, they finally met the first member of the Wadden family who was smashed to death. Xiong Yu found five grenades from him.

Xiong Yu frowned and said, "If I am not mistaken, everyone in the Wadden family should be equipped with six grenade shells normally. After getting on the island, except for those who encountered the Bonnet Viper. At that time, a few grenade bombs were used, but none of the others were used. Therefore, there should be four or five of these Waden family members who were killed."

Sun Lan didn't refute Xiong Yu's words this time, which was similar to her guess.

They continued to clean the rocks in the cave, and continued to search forward. From the time they met the first member of the Wadden family who was smashed to death, the corpses in the back gradually increased, about 20 meters ahead. , Xiong Yu has collected seventy-four grenades, plus the five remaining before, and a total of seventy-nine grenades.

Xiong Yu calculated the number of grenades, and shook his head, but it was still not enough. They were 500 meters away from the underground river, and it was a straight distance, and they needed to be bombed out.

Xiong Yu continued to look forward, and fifteen meters further, and found 51 bombs.

Xiong Yu stopped, gasped for a few times, and said, "It's almost there. If you go further, you may not be able to find much."

Sun Lan said, "If it is 500 meters in a straight line, a bomb can blow a distance of about two meters. We need more than 200 bombs to get to the dark river."

Xiong Yu shook his head and said, "We don't have to bomb all the way back. According to the topographic map I just drew, we can first walk 400 meters east along the cave that collapsed before, and then use the bomb to blast a tunnel. In this way, a lot of grenades can be saved."

Sun Lan thought about the map Xiong Yu drew earlier, and nodded, and said: "Walking in the cave will consume a lot less grenades. If your calculation is correct, then our current number of grenades, It's almost there indeed."

Xiong Yu and Sun Lan took the grenades they found with them, returned to the granite depression, called out Wang Yunxiu and Leng Bingyan, and let them follow.

Moreover, Sun Lan also unlocked the acupuncture points on Leng Bingyan's legs and hands, allowing her to regain her walking ability, but did not unlock the acupuncture points on the meridians that sealed her internal strength.

According to his calculations, Xiong Yu began to open the way with Sun Lan in the cave with his hand and grenade.

I don't know how long it took, Xiong Yu and Sun Lan finally got through the 400-meter distance in the cave, and Wang Yunxiu and Leng Bingyan followed all the time.

Both Xiong Yu and Sun Lan spent a lot of physical energy. After walking the 400 meters in the cave, they drank some water and ate some food, and then started the last 100 meters.

The last 100 meters are real stone walls, and you need to blast a channel little by little with grenades!

When they were traveling 400 meters in the cave, they collectively ordered more than 30 grenades. However, they also found seven or eight people from the Wadden family who had been killed. There are about forty grenades, so now they still have more than a hundred grenades.

Xiong Yu didn't hesitate either. After a short rest, he directly began to open the way on the stone wall with grenades.

However, after about two hours, Xiong Yu stopped. He had already used more than 60 grenade bombs, and had exploded a cave of more than 100 meters in the rock wall, but he did not find a dark river!

According to previous calculations, the dark river should be 500 meters away from them. However, now that the distance has been reached, there is no dark river, and there are still thick stone walls in front.

Sun Lan asked suspiciously: "What's the matter?"

Xiong Yu frowned, and said lightly: "I seem to have made a mistake?"

Sun Lan ordered a set and hurriedly asked: "What's wrong?"

Xiong Yu thought for a while and said, "I calculated the distance in a straight line. The cave is curved. The cave we blasted out is not straight, so the dark river should be still in front."

Sun Lan hurriedly said: "Then continue bombing, we still have 80 grenade bombs."

Xiong Yu said with some worry: "If all the bombs are used up and we can't reach the dark river, then we are in trouble."

Sun Lan was also silent, and now the food and water have basically been consumed. If there is really no grenade and no underground river is found, then it will be really troublesome.

Xiong Yu squinted his eyes and said, "Blast it first. I guess it can blow through. The distance of the cave should be no more than 200 meters. We can blow through."

After Xiong Yu finished speaking, he continued to plant the bomb and detonated it carefully.

This time, it took about three hours, and when there were only seven bombs left, they finally found the dark river in the mountain from the mountain!

Xiong Yu saw the wide underground river, and he was deeply relieved.

Sun Lan shouted excitedly: "Finally it exploded!"

Xiong Yu said to himself: "Fortunately, when I first came, I brought a mouse and golden thread, otherwise, I would really be trapped here."

Sun Lan took a deep breath, calmed herself down, and asked, "How do you swim out of this dark river?"