A silence passed over the heads of the explorers at a gentle speed, a hundred meters above the ground, and soon crossed the boundary drawn by the Fire Crystal Dragon Mother, and entered the range of twenty kilometers of the volcano.

After crossing the line, he paused, and nothing happened.

With the strength of the Fire Crystal Dragon Mother, Xin Lin guessed that it might leave some warning measures near the boundary, but now it seems that he has thought too much, and his telepathy has not detected any anomalies.

He continued to fly for a while, reaching the foot of the volcano without incident.

Looking up at the top of the mountain, a large cloud of smoke erupts all the time, connecting with the burning clouds in the sky, which is spectacular. Xin Xiao observed for a few minutes and made sure that everything was as usual before climbing up the mountain. The volcano is more than 8,000 meters tall, and as it rises in height, so does the temperature around it, the heat wave is steaming, the smoke is billowing and the air is filled with the smell of sulfur.

Ten minutes later, Xin Lin climbed to the top of the mountain.

A huge crater appeared in front of him, nearly a thousand meters in diameter, and Xin Lonely floated on the edge of the crater, which was extremely wide, at least two or three hundred meters thick. He cautiously approached the crater slowly, and suddenly a wave of heat rushed to his face, and a large amount of smoke and dust rose into the sky, carrying a torrent of sparks, and merged into the fiery clouds high in the sky.

Xin Silent stopped his body and heard the roar of the Fire Crystal Dragon coming from below.

He waited for a moment, then slowly flew to the inner edge of the crater, and poked his head out behind a boulder to look down.

The shape of the entire crater is like a huge cauldron of a thousand meters, the slope of the four walls is relatively gentle, the depth is only more than 300 meters, and the bottom is a lava pool. The lava pool is bottomless, with a small, strangely shaped island protruding in the middle, with two long, sharp corners erected at the edge of the island, which rise and fall with the lava flow.

Xin Lin couldn't help but shrink his pupils when he saw the island, this was not an island, but the head of the Fire Crystal Dragon Mother!

Before the thought fell, the Fire Crystal Dragon Mother raised her head, her huge head poked out of the magma, and opened her eyes, which were like two gates, and the pupils were erect, red like fire, and her fierce eyes scanned the edge of the crater.

"Not good."

Xin Xiao couldn't help but be frightened, he didn't expect the Fire Crystal Dragon Mother's perception to be so keen, and he was actually detected just by looking at it.

He hurriedly looked away, holding his breath, the Revenant Walker armor had already been put into subspace, and he was only wearing a set of close-fitting clothes all over his body, urging the singularity star core to balance his body temperature with the surrounding temperature, and at the same time absorbing all the light and waves radiating to his body, like a stone lifeless.

Half a breath later, a wave of energy swept by.

Xin Lin didn't dare to move, and even the telepathy was withdrawn in his mind, thinking: "This is the Dragon Mother's means of exploration, it is obviously not telekinesis, it is activated with its sight, it should be some kind of natural ability." ”

After a few seconds, the Mother of Dragons looked away, and there was a rattling sound in the lava pool, which then returned to its previous bubbling state.

Xin Lone's hanging heart was put down, and there was a hint of joy in her eyes, and sure enough, the Dragon Mother couldn't find herself in a state of invisibility.

He stood still behind the boulder for ten minutes before continuing his movements.

The telepathy was unleashed again, avoiding the lava pool where the Fire Crystal Dragon Mother was, and immediately probing the situation in the crater.

The stone walls around the lava pool are lined with Burnscale-style bunkers and buildings that Prince Leo had built before, but most of them have been destroyed, leaving only ruins and large areas of ruins. At this moment, dozens of fire crystal dragons were nesting in the ruins, lying there half-asleep, raising their heads and roaring twice into the sky from time to time.

Inside the ruins, there were dozens of artificially dug holes, some large and some small, the largest of which were large enough for the huge Fire Crystal Dragon to pass through and enter the interior of the mountain.

Xin Silent did not act rashly, patiently observing the movements in the entire crater.

Soon after, a fire crystal dragon flew out of the largest hole, landed next to the lava pool, offered a dozen fire source crystals with both claws, and then leaned down and roared flatteringly.

The Mother of Dragons' head moved, and all the fire crystals flew up and fell into its mouth, the flames flashed in her eyes, and her eyes fell on the fire crystal dragon, and she roared a few times, as if she was appreciating her descendants in some unique language. The fire crystal dragon responded with a high-pitched roar, and returned to the cave entrance excitedly, disappearing in the blink of an eye.

Xin Lin didn't look at it much, but he also understood that the Dragon Mother was recovering from her injuries in the Universal Edible Fire Source Crystal.

This was expected, he focused on those fire source crystals, and found that the quality of this vein was indeed extremely high, and the volume of the fire source crystal rough stones was generally relatively large, and the energy contained was three to five times higher than that of ordinary crystals!

Moreover, the reserves of this deposit are obviously large and easy to mine. Every half day or so, a fire crystal dragon will offer a spar to the dragon mother to devour.

"No wonder Prince Leo would be so angry, watching his huge wealth being embezzled, it's good that he didn't get angry."

Xin Silent peeked secretly for two days to make sure he was safe, and then moved out from behind the boulder.

Suspended in mid-air a few meters above the ground, he glided down the rocky walls of the crater, extremely slowly, like a turtle crawling, his telekinesis enveloping him, controlling the air flow within the range, consistent with the movement of the air in the crater.

It took almost an hour for Xin Lin to get through this distance, which was only a few hundred meters.

In this process, he didn't look at the mother dragon, even his heartbeat was so weak that he couldn't hear it, and he entered the ruins step by step, following the previously planned route, avoiding the lair of the fire crystal dragon, and finally arrived at a cave that was only more than five meters high.

This cave was too small for the Fire Crystal Dragon, and Xin Lin had observed it for a long time before, and was sure that no Fire Crystal Dragon would come out of the time.

He was like a transparent leaf, floating silently into the hole.

After entering the cave, Xin Lin sped up a little and continued to go deeper, until he shuttled down more than a thousand meters deep, away from the Dragon Mother, and then he breathed a long sigh of relief.

"Whew...... It worked! ”

Xin Lin clenched his fists, he had never felt so exciting in his life, as long as he was discovered by the Dragon Mother just now, the consequences would be unimaginable.

Thankfully, it's in now.

This passage was dug by the Yanscale Clan before, leading to the depths of the volcano, and it was connected to other passages, and Xin Lin flew down a few hundred meters, turned the fork, and entered a larger passage. Finally, there was a sound of digging in front of him, and he quietly approached, and suddenly a huge hot cave appeared in front of him.

The diameter of the cave is three or four hundred meters, and the stone walls are full of caves that lead to nowhere, and thousands of creatures are busy here at the moment.

The creature stood three meters tall, with an upper body that resembled a fire crystal dragon, but a lower body with four legs, a stout tail, and scales all over its body, like a half-dragon human.

Xin Lin could see at a glance that this kind of half-dragon people had the genes of the Fire Crystal Dragon, their intelligence was not high, but they had brute strength, completely obeyed the orders of the Fire Crystal Dragon, and regarded the Fire Crystal Dragon as their ancestor and master.

However, these half-dragons are not the main force of mining ore veins, and what they really mine is a giant worm that is 100 meters long.

This giant insect is similar in appearance to a sandworm, but the body size is magnified hundreds of millions of times, up to 100 meters, the diameter of the insect body is six or seven meters, the skin is rough, the body is strong, the head and tail two ports are full of more than a dozen rows of sharp and hard teeth, burrowing into the mountain, digging the channel like a shield machine, each wriggling can advance two or three meters, and the efficiency is not much worse than that of machinery.

"Digging sandworms!"

Xin Silence was amazed, this huge but intelligent invertebrate creature has similar existence on many planets, especially the hotter desert planets, they can often be seen, but this is the first time I have seen them.

The digging sandworm moves slowly, is not very strong in combat, and is often subject to some highly intelligent races and is used for mining.

His telepathy was integrated into a bundle, and the farthest probe distance was more than 10,000 meters, and he swept around the veins and found a full thirty-two digging sandworms, the largest one was one hundred and fifty meters long, and it was definitely a behemoth.

The digging sandworms dug the entire vein into a thousand holes, like a complex labyrinth, but did not collapse, this is their instinct, never destroy the load-bearing structure of the geology, causing it to collapse and crush themselves. Each digging sandworm was followed by dozens of half-dragons, who searched for the fire source crystal from the ore crushed by the sandworm, and gathered together after finding it, and handed it over to the fire crystal dragon who was in charge of supervision next to it.

The overall structure of the vein is actually an underground karst cave, most of the karst caves have magma pools, the temperature is extremely high, after hundreds of millions of years to cultivate the fire source crystal, many fire source crystals are even directly exposed on the stone wall, at your fingertips.

The function of the digging sandworm is to dig out the passage and open up these karst caves, so that the half-dragon people can enter it to mine the fire source crystal.

With such a high-quality vein, there must be a high-energy fire pool!

Xin Lin didn't delay any longer, and blessed himself with stealth again, avoiding those fire crystal dragons above level seven, shuttling through the passages, searching for the high-energy fire pools that were very likely to exist.

"What a vein! A lot of fire crystals! ”

After searching for more than ten minutes, the high-energy fire pool was not found, but it made Xin Silence gasp. Along the way, he found at least two hundred fire source crystals, the energy contained in these crystals was too high, and any one of them could be as tall as three or four ordinary fire source crystals!

This is only a small part of the vein, and he can't find out how big this vein is.

It's a pity that the fire source crystals found by Xin Lin are all buried deep in the ground and can't be taken out.

He shook his head regretfully, and continued to circle most of the maze of veins, reaching the depths of the veins. This is a large karst cave with an area of thousands of square meters, which has been mined, and the ground is a mess.

There was a digging sandworm digging a huge hole in front of it, and it would not be long before it could dig through another cave, followed by a group of half-dragons rummaging through the ore, and a sixth-level fire crystal dragon staring at the side, it already held seven or eight fire source crystals in its claws.

Xin Silence ignored the Fire Crystal Dragon, with its strength it could not detect itself in stealth at all, and the telepathy swept from all sides unscrupulously, and suddenly, a strange place appeared in the brain.

He was stunned for a moment, and then rejoiced in his heart: "High-energy fire pool!" ”

In the first measurement of the karst cave, there is a small space behind the thick rock wall, the whole is irregular hemispherical, the area is only two or three hundred square meters, the height is about 20 meters, and half of the ground is occupied by the magma pool. However, this magma pool is a little different, the surface is very calm, neither bubbling nor tumbling, and it is as smooth as a mirror, like the surface of an ancient well.

In addition, the magma in the pool is also extremely peculiar, it looks like translucent glass, and bursts of red energy rise like smoke, filling the entire karst cave, forming a vortex energy storm on the top.

This is exactly the characteristic of the high-energy fire pool!

Xin Lonely flew closer to this magma pool, telepathically penetrated through the stone wall, and immediately discovered the peculiarity of this magma pool.

It's bottomless, telepathic can't even reach the deepest, and it's frighteningly hot.

The temperature of the general magma is between 800 and 1,200 degrees, but the temperature of this magma pool is at least 10,000 degrees or more, even if it is separated by a stone wall more than five meters thick, there is still a hot feeling.

The temperature of this stone wall is dozens of degrees higher than that of other locations, but the digging sandworms did not dig in this direction, so they were not found.

Xin Lin looked at the sandworms and half-dragons who were digging not far away, and decided to wait for them to enter the next cave before moving.

After waiting for two days, the digging sandworm finally dug through the passage, and the fire crystal dragon and the half-dragon people followed up, and they were far enough away from the high-energy fire pool.

Xin Lin immediately took out the lightsaber, and his telekinesis wound it to stimulate the blade, spinning it at high speed, finding the right position and cutting it in.

Puff puff puff ......

The blade of the sword of millions of degrees easily cut through the stone wall, both the stone and the earth were melted into magma and flowed down, and a neat hole with a diameter of about half a meter appeared on the stone wall. A few minutes later, the lightsaber buzzed, piercing through the last layer of barrier, and a burst of red light leaked out of the hole, followed by a smoky red energy, as if it had found a catharsis and was about to erupt.

"It's all energy used to strengthen the properties of the Force, and it can't be wasted."

Xin Silence had already prepared, using his telekinesis to form a barrier at the entrance of the cave to block the leakage of energy, and then his body swished through the hole and entered it.

Before he could hit the ground, a large amount of gravel and dirt was swept up, and the hole was refilled from the outside, and then a stone was moved to block the position of the hole, covering it tightly.

After doing all this, Xin Lin put away his lightsaber and turned to look at the high-energy fire pool, a wave of high temperature and heat rushed towards his face, even if he was a thermal warrior, he was a little unbearable, not to mention, there was no air in this small cave at all, and even his breathing was stagnant.

Xin Lin didn't care about this at all, his eyes fell on the stone walls around the cave, and huge fire source crystals were inlaid on them, and at a glance, there was a glitter everywhere in his field of vision, almost blinding him.

"I'm going to get rich!" That was his only thought at the moment.