Although the underground space has been artificially repaired, the geothermal heat has been isolated to a certain extent.

However, the temperature inside is still high above 50 or 60 degrees, which may be caused by the failure of the internal ventilation system.

But what makes Er Yi wonder is, how does such an environment breed parasitic fungi? Doesn't that thing like a cold and damp environment?

Along the passage, it zigzagged into the ground for dozens of meters.

The second one was blocked by a heavy steel gate, and after trying to push it, he found that this thing had been completely welded to death!

What is there down there that is worth the time when the Americ military evacuates, spending such a huge project, not only welding the entrance but also blowing up the passage?

I knocked on the steel gate, and when I heard the movement, I knew that this thing was very thick, and even if it was used, it would take a lot of effort.

Eryi simply took the usual path, and directly dug a passage from the rock wall next to the gate, bypassing the steel gate embedded in the stone wall.

But as soon as he dug through the stone wall, Er Yi felt a scorching high temperature coming to his face, so smoked that he subconsciously took two steps back, and even he wearing thin armor could feel the scorching heat, is it directly connected to magma?

Eryi cautiously looked inside, and found that the inside was indeed a mountain cavity, and it was faintly glowing red.

There was a small magma spring tumbling in the cave, and the black and red magma was tumbling, and from time to time a magma bubble appeared, and it exploded with a bang.

Eryi tried to go deeper, but the heat inside made him very uncomfortable.

Because although the thin armor on the body has a certain heat insulation ability, it does not cover the closed aerogel armor plate, and the heat insulation ability is still a little worse.

Going back again, it was too troublesome to wait for the Spirit Base to make a set of heavy armor for him, so he had no choice but to activate a corresponding spell:

- Adaptation to the environment: 24 hours/stage, -10°C~100°C/stage;

Special: The patient is able to adapt to the harsh environment of extreme heat and cold, and can comfortably survive in the environment;

......

After attaching a buff to myself, the unbearable heat just now disappeared.

Coupled with the protection of thin armor, Eryi just felt that the surrounding environment was a little warm, not only not uncomfortable, but quite comfortable.

Walking into the lava cave under the heat, Eryi took a look at his surroundings.

It was discovered that the lava spring occupies the entire bottom of the cavern and flows down the surrounding caverns of various sizes into unknown places underground.

This magma spring should be the water of the Emerald Lake, the reason why the temperature is so high, but the second one did not see the existence of the water source.

If there is no water infusion, why hasn't the water of Emerald Lake been evaporated by magma for decades?

The place where he was now was basically at the bottom of the emerald lake, and the rocks around him were all charred black volcanic rocks that were unique to volcanoes, filled with large and small holes, and the lava gushed out of these holes flowed down to other places.

On the other side of the lava spring, a cavern about the size of the entrance, swarthy and unsightly to lead there.

Eryi looked down at his feet, and there were obvious traces of artificially erected bridges to cross the magma spring near the entrance of the cave, but at this moment, there were only a few fixed piles left.

It is unknown if it collapsed into a lava spring due to disrepair, or if the American army demolished the bridge during the evacuation, and the bridge deck was gone anyway.

With one, a rock bridge stretched forward, and when an arc-shaped half-arch bridge was formed, a fiery red stone pillar rose from the magma and topped the bridge deck, and a bridge was built out of thin air!

Stone pillars made of magma don't last long.

Taking advantage of the fact that the pier had not yet softened and collapsed, the two ones quickly passed through the magma spring to the opposite bank and burrowed into the cave on the opposite bank.

Amazingly, as soon as you enter the cave, the scorching heat immediately drops, and the surrounding rocks show signs of dampness.

After walking a short distance along the cave, Eryi entered another cave again.

Less than 100 meters apart, there is a magma spring and an underground lake gushing with cold groundwater.

The cave where the underground lake is located is covered with a large number of fungus colonies due to the humid environment, and the ground is covered with a thick soft fungus carpet, which is obviously the birthplace of parasitic fungi.

And by scanning the surroundings, I can also understand why the water of Emerald Lake will not dry up.

An underground vein passes through the volcano, part of which seeps into the cavity of the mountain to form the underground lake, while the other part is heated by a lava spring and gushes out of the ground under pressure, forming an emerald lake.

And if I'm not mistaken, all this was just more than a hundred years ago.

Because the crater that was smashed through by the meteorite is just above the location of the second one.

It is precisely because the meteorite smashed through the fragile rock layers of the volcano, forming a funnel-shaped cavity, that the groundwater has a chance to emerge from the ground...... This can only be said to be a miracle of nature.

The fungi in the cave, due to the lack of parasites, only exist in the form of hyphae.

As soon as he entered here, he immediately attracted mycelium all over the ground and entangled him like a wriggling nematode.

Raising his hand to release the thick fungus blanket that froze, he walked towards the inside of the cave, and the sound of footsteps caused by the footsteps immediately shattered the mycelium that turned into ice crystals around him.

However, he walked around the small underground lake, and found no mature strains other than a large number of mycelium.

This is unlikely, if there is no mother strain, where these hyphae are derived?

Eryi's eyes fell on the surface of the underground lake, and he saw a jade-white object, floating in the lake, looking like a large ...... Fat?

What's that?

Eryi judged the distance, released the invisible, grabbed the "fat meat" and dragged it to the shore.

I saw that the jade-white "meat ball" about the size of a basin was trembling, and it was quite elastic to the touch.

After the second one used it to identify, he was stunned to find that this is not a "Tai Sui", which is the so-called "meat Ganoderma lucidum"?