Three days later, Han Tianyun embarked on a journey to explore the volcano.

In the past three days, he took out countless wires and other materials from the cave, and with the help of Xiaohua, he used the wires to fill the holes.

And after conveying his intentions to the demon tree several times, the demon tree really drilled a fibrous root from the ground where they were and connected it to the iron net he tied.

At the same time, he also left a small door online for easy access.

With this iron net, those insects and bats that came sporadically were instantly electrocuted under the adsorption of high-voltage electricity, and became the nutrients for the fibrous roots of the demon tree.

After doing all this, Han Tianyun turned his gaze back to the volcano in the distance.

However, because the temperature was too high there, he only let Xiaohua send him to the foot of the mountain, and then let her turn her head.

Because of the fire poison in his body, his ability to resist high temperatures is much stronger than ordinary people.

This is also a special ability given to him by Fire Poison.

But Xiaohua obviously can't withstand such high temperatures.

So the exploration of the volcano can only be done by himself.

At the foot of the mountain, the appearance of this volcano is more realistic.

If you want to say that this volcano is really strange, it looks very majestic and magnificent when it looks straight into the sky from a distance, but when you get closer, you find that the base of the mountain is not wide, and the whole mountain is like a big iron pipe standing alone in a magma pool, which looks very strange.

What's even more strange is that the boiling magma in those lava pools keeps flowing and converging, and finally all of them pour into the hollow mountain like a stream.

Then these magma erupted in the mountain, and rushed upward, just like human blood flowing rapidly in the blood vessels, and in an instant it had reached the belly of the mountain more than ten zhang high.

At the same time, the belly of the mountain above was hollow, and there was a spring pouring down on the hot magma.

With a violent roar, the springs melted into white mist and melted into the thick clouds high in the sky.

However, the upward thrust of the magma was also extinguished by the spring.

Looking at this scene, Han Tianyun even suspected that the clouds were formed by the evaporation of these water vapors.

Looking at these huge magma pools, Han Tianyun was in trouble.

The temperature of this volcano was so high that just standing here already made his face ache, as if he was beside the furnace of a blacksmith's shop, how could he dare to get close to investigate?

Not to mention the lava debris that fell after being cooled by the impact of the water, and smashed back into the pool below, smashing the hot magma into scattered places, once it stuck to his body, even an alien like him who was not afraid of the heat, I am afraid he would not be able to bear it.

After observing for a long time, Han Tianyun fixed his eyes on the mountainside where water vapor was constantly spewing out.

If his guess was correct, then if he could drill his way up the inner passage of the volcano, he should be able to reach a new place.

If you want to successfully burrow into the volcano's interior, the holes with water vapor spewing out are obviously the only entrances that can be seen so far.

But this is a risky move, and if you are not careful, you may be swept away by the waterfall and fall into the magma pool below, and directly turn to ashes.

In addition, it is extremely difficult to reach those holes successfully.

But at this moment, he suddenly saw several bats the size of bowls, flying out from behind the mountain.

"Hey, is there an exit over there?" Han Tianyun suddenly woke up, and hurriedly made a large circle from the dark red scorched earth behind him, turning to the back of the volcano.

Standing still, Han Tianyun's eyes lit up.

There were still several large pools of magma on the back, but I don't know if they had been spewed out or extinguished by the spring water gushing out of the mountain stream.

In short, the magma in the magma pool on this side is no longer active, and only the slightly boiling hot water shows that there was once violent geological activity here.

At the same time, there was a black cave in the mountain stream, from which a few bats flew out and flew around the volcano in the direction of the demon tree.

Obviously attracted by the scent of the young seedlings of the demon tree.

I don't know why these creatures have such a strong sense of smell, and they can still smell the smell of the demon tree from such a distance.

Seeing this hole, Han Tianyun's heart was more confident.

Obviously, the black-winged blue bat king came out of here, so his body like himself would definitely be able to walk out of it.

He raised his head and stared at the strange volcano standing straight up in front of him, deep into the clouds, before slowly walking towards the black hole in the mountain stream.

The cave was completely dark except for the dripping water droplets and damp walls.

But with a strong spiritual sense, this is not difficult to help the cold sky clouds at all.

As his spiritual sense was released, everything around him was presented in front of him.

In his perception, it was a chimney with no end.

It is full of crevices left by the lithification of volcanic magma, but it is not difficult to climb.

With Han Tianyun's physical strength, which was already at the peak of ancient martial arts at this time, it was not too difficult to climb on such a rock wall.

Along the way, he occasionally spotted bats falling down from the passage, making him constantly sure that there must be an exit ahead.

He climbed fast, but it was still more than an hour before he finally reached a funnel-shaped interface with the dripping spring water.

When I came here, there was already a faint light in the sky outside the funnel above.

After a moment's pause, Han Tianyun carefully drilled half of his head out of the mouth of the funnel.

For the sake of safety, he almost did not dare to observe the situation outside.

In front of you, there is a dark red valley that looks like a cauldron.

It was already late at night in the deep valley, and a round of blood moon in the sky was reflected obliquely on the bottom of the funnel-shaped valley by the mouth of the valley, which looked desolate and strange.

Apparently, this is a crater left behind by a volcanic eruption, and the dark red lava material in it highlights the fact that it erupted not long ago.

After observing for a long time and not finding anything unusual, Han Tianyun was finally a little relieved.

After his eyes were fully accustomed to the light of the outside world, he slowly emerged from the bottom of the valley, and then quickly climbed towards the valley mouth to the east.

This time, he moved quickly and barely made any sound.

But even so, after climbing in the deep valley for more than ten minutes, the cold clouds finally rushed to the crater.

After a brief search, he quickly rushed towards a large charred tree outside the crater, completely hidden in the roots of the tree, and then began to look at the surrounding scene.

This time, he saw the outside world completely.

This crater is located on the highest point of a mountain, and even at night, you can see the scene in a clear circle.

In the hazy moonlight covered with red veil, Han Tianyun recognized this place at a glance.

Here, it is the main peak of the Lihuo Mountain Range, Lihuo Peak!

Here, you can not only overlook the vast mountains of the Lihuo Mountains, but you can even vaguely see the location of the Lihuo Fortress.

There is even a big river a hundred miles away that meanders towards the right rear of the Lihuo Mountain Range, and it looks like the big river where he and Wu Yu built a hydropower station.

On the other side of the river, there is an arc-shaped mountain range that is extremely eye-catching, and it is obviously the Moon Mountain where the Lei Ling Temple is located.

On the flat impact plain on this side of the river, there is a dotted place, which is the Lei Ling Academy.

Seeing all this, Han Tianyun swallowed his saliva with difficulty, and he couldn't help but be shocked to the extreme.

Although when he saw the lava volcano underground, he made a bold guess as to whether it could be the one erupting from the Fire Mountains.

But at the moment when everything was verified, he still felt that all this was too mysterious and unscientific!