A purple flame fell on the body of the ragged demon, and Hongtu used a spell to burn the demon's body to ashes. The demons who dig obsidian ore in Whirlwind Mountain suddenly disappear one or two, and they will not attract the attention of other demons, after all, in the mines of Whirlwind Mountain, these demons who dig obsidian ore are not all able to get along peacefully, and it is also common to rob the obsidian ore mined by other demons.

The ragged corpse of the demon on the ground had turned into a handful of black ashes, leaving only a black bracelet in the demon's ashes, and Hong Tu took the bracelet on the ground into his hand with a wave of his hand. When he started it, Hongtu could feel that this bracelet was very light, only about half a catty, but this black bracelet was very huge, with a diameter of more than 30 centimeters.

Hong Tu's divine sense directly entered this black bracelet, and he knew that this black bracelet was the standard equipment of the demon who excavated obsidian veins on Whirlwind Mountain, and all demon miners had one such bracelet in their hands. This bracelet is also a piece of space equipment, although the space inside the bracelet is not large, but there are dozens of cubes or so, enough for mining demons to use to hold obsidian ore and their living materials.

In this space bracelet, Hongtu found a wine jug, dozens of pieces of meat, and the clothes worn by the demon before, and the rest was some water and food. In this demon's space bracelet, Hong Tu did not find a single piece of obsidian ore, apparently this dead demon has exchanged all the obsidian ore in its bracelet for the materials he needs to survive, as well as the pot of wine and meat.

This space bracelet has no effect on Hong Tu, and the space ring in Hong Tu's hand is much better than this bracelet, so Hong Tu directly threw this black bracelet aside. Looking at the obsidian ore in the mine, Hongtu returned to the mine to continue digging his obsidian ore. Based on the current rate of excavation of obsidian ore in Hongtu and the amount of obsidian ore in the rock layer, Hongtu estimates that it will take another three days to dig out most of the obsidian ore in the rock layer.

More than two days later, Hongtu was still digging obsidian ore in the mine, and four spiritual weapon flying swords kept flying in the mine, and a large number of rocks and obsidian ore were excavated by Hongtu. Hong Tu found that in the past half an hour, the excavated obsidian ore turned out to be a high-grade obsidian ore, not even a piece of medium-grade obsidian ore, and these high-grade obsidian ore were dug out by Hong Tu for dozens of catties, which made Hong Tu feel a little puzzled.

Originally, Hongtu's divine sense detected that most of the obsidian ore veins should be medium-grade obsidian ore, and the stock of high-grade obsidian ore was very scarce, but in the half an hour, Hongtu excavated all the high-grade obsidian ore. This shows that the situation of Hongtu's divine sense investigating this obsidian ore may be a little inaccurate, although under normal circumstances, Hongtu's divine consciousness will not appear in other situations, but this is Hongtu's divine sense investigating the obsidian ore vein, and the rock layer in this vein has the effect of blocking the divine sense's investigation, so this situation is normal.

Using his divine sense to investigate again, Hong Tu found that there was nothing abnormal about the obsidian veins he was excavating, and there were still a lot of obsidian ore in the rock layer, but most of the remaining obsidian ore was of high grade, and only a small amount of medium-grade obsidian ore was scattered in the rock layer. Since no anomalies were found in this vein, Hongtu continued to excavate the obsidian vein, and now it will only take half a day at most to continue excavation, and this obsidian vein will be excavated clean.

After another ten minutes, Hongtu excavated more and more high-grade obsidian ore, and now Hongtu has excavated at least hundreds of catties of high-grade obsidian ore, looking at the high-grade obsidian ore piled up beside him, Hongtu gushed out a huge sense of accomplishment from the bottom of his heart, so many high-quality obsidian ore, Hongtu took it out in exchange for magic stones that can be used for a long time.

The four spirit weapon flying swords sped up to dig the obsidian ore, and suddenly a hole was dug out of the rock layer in front of Hong Tu, and the high-grade obsidian ore next to it had been almost dug by Hong Tu, leaving only some medium-grade obsidian ore hidden in the rock layer. But Hong Tu now dug a hole the size of a basketball, and even Hong Tu's divine sense swept through this hole, and he didn't find that there was a cave in this obsidian vein.

Looking at the hole he had dug out, Hong Tu found that in this cave, a soft white light was shining, and Hong Tu could clearly hear the sound of water droplets. Hong Tu immediately urged the spirit weapon flying sword, sped up the speed to open the hole in front of him, and the spirit weapon flying sword cut into the rock layer, cutting down the rocks in the mine in large chunks.

In less than a minute, Hong Tu successfully dug out a huge gap in the shape of a human figure in this basketball-sized hole. At this time, Hong Tu saw that in this cave, a white spar the size of a baby's fist was emitting a soft white light, and the white light that Hong Tu saw just now was emitted by this ore. The cave that was opened was half the size of a basketball court, and in addition to the white spar, there was a waterhole next to the white spar, and the pool was full of white liquid.

Above this square or so pool, white liquid is dripping from the rocks one by one, and it keeps dripping into this white pool. Standing outside the entrance of the cave, Hong Tu could feel a huge spiritual power filling the entire cave. Obviously, this white pool, or white spar, contains a huge amount of spiritual power. Hong Tu found that in this mine, there were items containing spiritual power, so there must be other things containing spiritual power in the demon world, and Hong Tu might be able to find the cultivation resources he needed in the demon world.

Moreover, in the demon world, all the materials needed for demon cultivation are magic stones, and what they cultivate is also magic power, which means that items containing spiritual power have no effect on demons. And for immortal cultivators like Hong Tu, what they need to cultivate is a large number of spirit stones, as well as materials containing spiritual power, these items containing spiritual power are like garbage in the demon world, so Hong Tu patiently searched in the demon world, and he will definitely be able to find a lot of cultivation materials that immortal cultivators need.

Looking at the white spar and white pool of water emitting huge spiritual power in front of him, Hong Tu didn't immediately walk over, because Hong Tu knew that there must be a guardian beast next to such a treasure containing huge spiritual power. It's just that now Hongtu has not found any signs of biological activity next to this white spar and white pool. Because Hongtu had stopped digging for the obsidian ore in the rock, there was silence in the cave now, and no sound was heard.

Only the sound of water dripping in the mine was very obvious in this silence, except for the sound of water dripping down, Hong Tu could only hear the sound of his heart beating constantly. Next to this mine was originally an abandoned ore vein, few demons came here, and there were almost no other creatures in the mine, so in the mine where Hong Tu was located, there were no other demons or beasts except Hong Tu, and the mine was naturally very quiet.

A burst of fragrance wafted out of the mine, and Hong Tu immediately felt refreshed when he smelled this fragrance, obviously this fragrance was transmitted by a gas containing spiritual power. Although Hong Tu didn't know whether this fragrance was a white spar in the cave or a white pool, Hong Tu was sure that this fragrance was not poisonous. Although it is said that in a confined space, it is very likely that some terrifying toxins will be produced over time, but it is clear that there are no toxins in this mine.

Smelling the smell of this fragrance, the mana in Hong Tu's body worked slightly, and the spiritual power contained in the fragrance was completely absorbed by Hong Tu. Now Hongtu is even more sure that the white spars and white pools in the mine are rare treasures. Hong Tu didn't know how many treasures like this were in the Demon Realm, but he was sure that such treasures on the earth had long been extinct, because there were no high-level energy on the earth, so naturally there would be no such spiritual creatures.

After carefully inquiring about the Ten Directions of the Ten Directions of His Cultivation Technique, Hong Tu could determine that the white waterhole in front of him should be the legendary 10,000-year-old spirit milk. Ten thousand years of spiritual milk is a rock deep in the mountains or underground, after tens of thousands of years of growth, there is a chance to give birth to some stone stalactites. And this newly grown stone stalactite, the effect on the immortal cultivator is not very large, only after thousands of years, these stone stalactites are refined and precipitated again, forming a thousand-year-old stone stalactite and a 10,000-year-old spiritual milk, such a stone stalactite has a very great effect on the immortal cultivator.

Thousand-year-old stone stalactites, immortal cultivators can quickly recover their consumed mana by drinking a small sip, and it is used to refine the elixir to improve the quality of the elixir, so the thousand-year-old stone stalactites are already very precious immortal cultivation materials.

And Hong Tu can be sure that the white 10,000-year-old spiritual milk in this waterhole in front of him is at least hundreds of thousands of years old. Because of this pool of water about square meters, it is impossible for these stone stalactites to accumulate into such a large pool without hundreds of thousands of years of stone stalactites dripping from the stalagmites. Although Hong Tu did not know the depth of this pool, Hong Tu could determine that the stone stalactites in front of him were far more precious than the ordinary 10,000-year-old stone stalactites.