Lin Hong hugged Yao Xinyan, who was trembling with fright, and lay on the ground, turning his head to look at the raging sea of fire not far away. Grandma's, I almost lost my life just now. The moment Lin Hong threw the torch over, all the rattans that those cannibals were ashamed of burning instantly as if they had been poured gasoline. Fortunately, Lin Hong reacted quickly enough, picked up Yao Xinyan and started running. Otherwise, they would have been buried in a sea of fire by now.

"Brother Hong, what's going on? It seems like a big fire, is there something wrong? Yao Xinyan asked timidly.

"It's true, but it's a good thing. Fuel, we have it. Judging from the current combustion situation, this thing is more powerful than gasoline. Lin Hong said in a low voice. It seems that this is another new discovery, and if you take this to the ground and cultivate it, you may be able to solve the problem of the energy crisis. When the time comes, you will monopolize it exclusively, and if you don't get rich, you will have a ghost.

However, Lin Hong didn't rush to the past, now let him burn it first to see how long it can be burned. If it was just a flash in the pan, it wouldn't have much effect, but what made Lin Hong excited was that the fire kept burning and burning. He didn't know the time, he knew that Yao Xinyan fell asleep and woke up, and the fire slowly went out when he was tired and asleep after eating and playing.

Although such man-eating flowers are not as common as the small red fruits they eat, they are not hard to find in the underworld. Lin Hong found a field of man-eating flowers, cut off their rattans, and then he took out more than a meter to grow out. Lin Hong gently touched the rattan with a spark, and the rattan burned instantly. According to Lin Hong's feelings, the heat emitted by this is far more than the heat emitted by gasoline combustion.

But Lin Hong can't bundle a lot of man-eating flowers to make dyes for hot air balloons, how can such a big pair be added to the jar connected to the firearm? Just burn it, then wait for the whole hot air balloon to be burned.

However, Lin Hong had an idea, he took the rattan used for the real yàn from the new, crushed it, and took out the mucus inside. Then Lin Hong directly ignited the slime, and sure enough, the mucus also burned quickly, and the effect was even better than burning rattan directly. This time, the fuel problem is completely solved. He had to sigh at the magic of this underground world, which was able to create so many magical things.

In the next time, these man-eating flowers were unlucky, and Lin Hong frantically gathered them, and then took out the slime. He had a hunch that this thing would become the new darling of energy in the future. As long as it is successfully cultivated on the ground, this large amount of money is not a problem.

The slime fills both tanks, and the balloon is completely ready to be refilled.

"Xinyan, you wait for me, I'll come back after the successful test flight, and then we can leave." Lin Hong, who was standing on the iron basket of the hot air balloon, said to Yao Xin on the ground. Because he didn't know the safety of this hot air balloon, he didn't dare to let Yao Xin come up during the test flight. If something happens, he can still find a way to escape if he is the only one. But with Yao Xinyan's words, it is estimated that it will be troublesome.

"Okay, I'll wait for you to come back." Yao Xinyan said. But now she is very conflicted in her heart, she is wondering, will Lin Hong just leave, and then leave herself here and leave herself to fend for herself? This is what Lin Hong said, she looks very cheerful and lively on the surface, but her heart is very dark. So everything she thinks about is also thinking negatively.

"Don't worry, I'll be back soon, just wait for me. The Xinyan ignites. Saying that, Lin Hong lit the flamethrower. The hot air rushed into the autumn, and slowly Lin Hong felt that the iron basket had risen above the ground. He quickly cut the rope with a dagger, and the balloon rose straight up.

"I must come back." Yao Xinyan whispered at this time, and then sat on the ground.

"Haha, it's flying, it's really flying. Oyer, I'm a genius. Lin Hong is dancing excitedly now, and the hot air balloon has been rising. However, this ball wall rubbed against the cave wall from time to time, which made Lin Hong a little frightened, this hot air balloon broke like this ten years ago. Ten years from now, don't let history repeat itself. But when this rises higher and higher, this friction becomes more and more intense. Lin Hong hurriedly lowered the flame and stopped rising. If this continues, he knows that the tragedy of ten years ago will happen again. At present, the material of this hot air balloon cannot stand such friction at all.

In the end, Lin Hong began to descend, and when he returned to the ground, Lin Hong jumped out of the iron basket, and then used a rope to delete the hot air balloon.

"Xinyan, I'm back."

"Hong." Hearing Lin Hong's voice, Yao Xinyan hurriedly ran over, hugged Lin Hong tightly and said, "I thought you wouldn't come back." ”

"You're talking stupid again, I'll be away for no more than an hour. As long as you're down there, I'm going to jump off even now when I'm back on the ground. Lin Hongdao.

After Yao Xinyan heard this, a happy smile quickly appeared.

"Remember what you said, and you'll never want me."

"Well, I will never want you."

After that, Lin Hong spent almost a day overhauling the hot air balloon, and then continued to study Li Shen's diary. In particular, he recorded the number of hot air balloons when they were lifted off. According to the number in Li Shen's diary, this hot air balloon could not actually fly out of this hole. The rest of the way required manpower to climb, but it wasn't far from the ground. But if you accidentally fall this one, then wait for death.

And you still have to leave the hot air balloon before it breaks, or when the hot air balloon bursts, you will die before you leave.

In Li Shen's cave, Lin Hong also found a lot of climbing ropes. Although so many years have passed, the preservation is still very good. Lin Hong put these climbing ropes into the iron basket, and when the time came, they would use this to climb up. Although there is some suffering, Lin Hong believes that it will be possible.

After that, he went to collect the seeds of the plants in it, and he was satisfied with a large bag.

Finally, the day of the hot air balloon officially takes off, although the friction problem has not been solved, but it doesn't matter, let them climb the rest of the distance with their hands. I don't know how long I've been trapped, and Lin Hong is also like an arrow.

"Xinyan, don't be afraid, we'll be able to go home soon." Standing in the iron basket of the hot air balloon, Lin Hong hugged Yao Xinyan's small waist and said.

"I'm not afraid." Yao Xinyan said: "As long as you are by my side, I am not afraid of anything, because I know that as long as there is danger, you will protect me regardless of anything." ”

Lin Hong gently scratched the bridge of Yao Xinyan's nose and smiled: "Little fool, it's good if you know." ”

"Nasty, don't call me stupid."

"Hehe, are you ready to go? Xinyan stupid, ignition. ”