Chapter 1459

Two hundred kilometers northwest of Taiwu mountain, in the deep mountains near the plateau, a big mountain stands towering here.

This mountain is xuantie mountain. The terrain of this mountain is steep, and the peaks are like knife cutting. Because there are many iron ores on the mountain, the land is very hard, and the trees are very sparse.

However, the iron ore on the surface is defective, and even if refined, it is waste residue, which has little utilization value.

Only the ore in the mountain is the best, but the coal seam below is burning and it is difficult to mine.

And the temperature here is slightly higher than other surrounding mountains, but it is not very obvious.

"Here it is!" Xia yuan looked at the towering mountain road at the foot of the mountain.

Xia yuan led the way to xuantieshan this time. Shen Feng and Xia Xin followed. They came together.

"Is it really burning under xuantie mountain?" Shen Feng squatted down and touched a stone beside the white edge.

In this cool morning, the stone is not cold, but light warm, as if it had just been basked in the warm sun.

"Yes, I came with my father once when I was a teenager and saw the flames burning underground." Xia yuan answered as if he had returned to his youth.

"You say the underground flame has been burning for a hundred years, and these media can't be burned out?" Xia Xin frowned slightly.

"The underground flame doesn't burn very vigorously. The underground ventilation is not good. It just burns a little, not to mention a hundred years. Even if it burns for hundreds of years, it won't be a problem." Xia yuan smiled and said.

"Then why not put out the fire?" Xia Xin continued to ask.

"Who can put out such a big fire?"

"Just blow up a big hole from the top of the mountain and fill it with water?"

"Ha ha, silly girl, the moment when the hole is blown open is equivalent to opening a skylight. The wind in the mountain is already strong. When the flame below is ventilated, it will explode in an instant. The whole mountain will soon burn out and become a volcano. Where is there time to pour water into it?" Xia yuan laughed.

The most basic thing to learn to cast a knife is to burn fire. Before learning to cast a knife, every knife caster basically has to learn fire Kung Fu for several years.

Want to cast a good knife, materials, technology, fire is indispensable!

Xia yuan knows fire very well.

"Oh." Xia Xin stuck out her tongue in embarrassment and continued to go up the mountain.

At the foot of the mountain, he advanced about a kilometer and came to a collapsed cave.

The cave was originally a huge mine entrance, where there were tracks leading to the underground and abandoned mine cars.

However, the railway tracks have been removed, the mine cars have been abandoned, and there are many abandoned buildings at the entrance, highlighting the glory here.

Most of the cave has collapsed, leaving only a passage three or four meters wide. Originally, it all collapsed, and the passage in front of us was also dug by later generations.

Just near the entrance, a burning breath came from the pavement.

"Elder, why is the underground here suddenly on fire?" Shen Feng looked at the dark cave entrance.

"I don't know the specific reason. I just heard that when the two groups competed for the mining right of the ore, there was a fire in the mine cave. At that time, people used that kind of black gunpowder. While the violent explosion accidentally ignited the coal seam, and everyone died in it." Xia yuan should answer.

Shen Feng looked around and said faintly, "it seems that someone has been here recently."

"Yes, the underground mine is not only very hot, but also many unknown animals. I saw a six meter long fire Python when I was a child." Xia yuan frowned.

Xia Xin also continued: "I remember a medical book once recorded that there is a special fire poison in the fire snake, which grows near the volcano. Its scales and internal alchemy are rare medicinal materials."

While talking, "Hoo!" A gust of air burst out from the hole. The temperature of the air wave was much higher than that just now, and a mass of dust was raised at the hole.

After the storm, calm returned to the inside.

"Let's have a rest before we go." Xia Yuan said and rested in place for half an hour before walking to the cave.

The passage in the cave is sometimes wide and sometimes narrow.

The wide area is about ten meters, and the ruins of the old mine cave inside are clearly visible. The narrow area can barely allow one or two people to pass through. It is obviously artificially excavated.

The trend of the mine cave is inclined downward. When it goes deep into the ground for more than 200 meters, there are cutting marks on the surrounding walls. The residual ore here is also several levels better than the ore on the surface.

And the temperature here is higher, but it's still a tolerable temperature.

"Grandpa, how far is it?" Xia Xin looked at the rugged path under her feet and asked.

"Soon, the mine is not very deep." Xia yuan should answer, "but there should be large beasts here."

Then he took out an old map, which was uploaded by Mingdao Zhuang Zu.

Although it is the map of xuantieshan before the accident, it can also roughly find the central position of the mine cave.

After listening to Xia yuan's words, Shen Feng was also alert. He didn't see anything on the way down. Now he has a feeling of being stared at by something.

"This way." Xia yuan walked to the left at the fork in front, and they followed behind.

Not far away, Xia Xin suddenly screamed, pointed to the stone not far in front and said, "look."

Shen Feng and Xia Yuanxun went to see a lot of dead bones and clothes scattered beside the stone. These dead bones are human!

Dead bones are old and new. There are almost more than 20 dead bones. Each dead bone is almost complete. Obviously, it is not caused by the bite of wild animals.

And some dead bones have been blackened, which is obviously burned like this.

"Go!" Shen Feng saw that these dead bones were concentrated in one place. His heart sank and subconsciously looked up.

I saw hundreds of eyes staring at him in the direction of the head. The light in the mine was very dim, and the hundreds of eyes looked particularly bright.

The owners of these eyes are some bats perching on the top of the cave. These bats are dark red. Each one is the size of a lamb. From their body size, the wingspan must be more than one meter or larger!

Obviously, most of the dead bones on the ground are their masterpieces.

"Up!" Shen Feng lowered his voice for fear of disturbing them.

Xia yuan and Xia Xin also followed the prestige. Xia yuan's pupils suddenly shrunk, his face showed a startled color and said, "no, it's a fire bat!"

He's been here before and knows the power of fire bats.

"Go, don't disturb them." Shen Feng whispered