In fact, there is no need for Hadocido to say, Cook has seen a faint light, but this light is too far away from the distance where Cook and the others are, so it can only be seen faintly.

"Well, whether it's a city or not, we're going to have to see it," Cook thought for a moment, then replied,

Because in the underground world, there is light does not mean that there is a city, and there is light more on behalf of danger, because in the underground world, some creatures rely on their own light to attract prey, of course, these creatures rely on the light to attract prey at the same time, but also provide convenience for predators, so the ones who can use the light to attract prey are all strong, even terrifying creatures,

The height of the waterfall exceeded two thousand meters, and the huge underground river washed out the pool was almost bottomless, and Varuman used his gliding ability to lead Cook and Hadowsi to the bottom of the waterfall.

The waterfall is very slippery, and the surroundings are full of rich water vapor, and around these waterfalls live some rare water-based magic creatures in the demon plane, but these magic creatures look very terrifying, and it makes people uncomfortable to look at, but the level of these creatures is not very high,

"Master, what a strange creature, look at that guy, there is a magic crystal lamp-like thing hanging from his head," Hadowsey asked, who had never seen such a strange creature,

"That's it, and the spikes all over this guy's body, you know at a glance that it must be poisonous," Varuman also said,

Cook smiled and said, "These creatures all have their own means of survival, hanging above their heads like magic crystal lamps, this lantern is the bait to attract prey, and that guy covered in spikes must have a strong toxin,"

Of course, it's not that there are no blind guys to harass Cook, but the very depressed Valuman wields a six-sided hammer and smashes it into an old man's meatloaf, and Cook doesn't bother to do it,

"Master, look, water crystal god, this is almost a water crystal vein," Hadosi exclaimed, probing the way in front,

Cook also rushed over, you know, in the demon plane, the water system magic crystal is hard currency, this is mainly because the water system magic crystal in the demon plane is very rare, and the fire, earth, and gold magic crystals in the main plane are expensive, but they are not worth much in this demon plane, because the number is too large,

"It's really a vein, and it's accompanied by water marble," Cook looked at it carefully, and was excited,

Water marble is a water-attribute gemstone, but it is not a magic crystal, the water magic crystal is composed of water elements, and the water marble is used to amplify water magic, which is a very rare magic gem.

"More than that, master, look what's in there," said Hadowsi, holding a stone from a vein, and showing it to Cook.

"Hey, this vein is really...... There is actually a water spirit stone," Cook looked at the blue light on the ore, Cook thought it was an inferior magic crystal at first, no one knew how the magic crystal ore was formed,

However, the general magic crystals are wrapped in layers of rocks, just like jadeite, but the inferior magic crystals are scattered, and the largest is only the size of a grain of rice, which is also an important basis for identifying the magic crystal veins.

But the blue rice grain size on the ore in front of Cook did not emit any magic fluctuations, Cook carefully distinguished, it is now water spirit stone, water spirit stone is a substance between metal and gemstone, water spirit stone is mainly used as an additive,

For example, when creating water magic equipment, add a certain proportion of water spirit stones, after the equipment is completed, the attack increase of the water system is obviously high, and when defending, it is immune to a part of the water magic attack.

Therefore, although the demand for water spirit stone is not very large, but because of its scarcity, the price is very high.

"What a big vein," Cook looked at an irregular circular area of at least hundreds of square meters on the ground, this is the vein of the water system magic crystal mine, and even you can see the exposed pieces of water system magic crystals, the big ones are the size of a fist, and the small ones are the size of eggs,

You must know that the veins of the magic crystal ore are generally a mass in the mountain, the large ones are tens of thousands of cubic meters, and the small ones are only a few dozen cubic meters, but Cook also knows that this vein is at least millions of cubic meters by virtue of the direction of the veins he sees now, of course, the accurate number needs professionals to explore before they know.

"Wealth," Hadowsi hurriedly cleaned up the exposed water system magic crystals, Valruman was not to be outdone, only Cook was not very interested in these things, you must know that Avris is the mermaid princess of the sea clan, what is the most on the bottom of the sea, of course, it is the water system magic crystal, the palace of the mermaid clan is the floor paved with magic crystals, it can be seen how many water system magic crystals there are in the mermaid clan, and people use tons to indicate the number of water magic crystals,

"Let's go," Cook said angrily when he saw that Hadowsi was still trying to dig on the spot,

Hadowsi heard Cook say this, and now Cook didn't come to dig up the magic crystal, Hadowsi walked up to Cook and took out a dozen water-based magic crystals very painfully: "Master, ......,"

"Hehe, give it to me," Cook was stunned for a moment when he saw Hadowsi like this, and then he smiled and picked up a fist-sized water crystal and looked at it.

"Of course, you are my master, and all my property belongs to you," Hadowsi said through gritted teeth when he saw Cook like this, but he was still smiling on the surface,

Cook threw the fist-sized water-based magic crystal into Hadowsi's hand and said, "For me, this thing can be there or not, and the quality of this magic crystal is not too good, I don't like it,"

"Master, this, this is a high-grade magic crystal, look at this transparency, as well as this luster, and this shape ......," Hadoxi was surprised, and quickly explained, you must know that the content of inferior magic crystals in a magic crystal mine reaches 9o%,

It's good if the magic crystal reaches 8%, and the high-grade magic crystal reaches 2% is very remarkable, as for the best magic crystal, the perfect quality magic crystal, maybe there are no two quality magic crystals in the entire ore vein, this thing depends on luck,

"Top-grade magic crystals, I use the best magic crystals to feed my pets," Cook replied disdainfully, and then took the lead and left,

"Pet, the best magic crystal," Varuman also heard Cook's words on the side, and subconsciously Varuman repeated this sentence, what is the concept of the best magic crystal, even the sum of the times Varuman has seen it before adds up to a slap count, and the perfect quality has never been heard of,

Cook ignored it at all, the long-term erosion of the underground dark river has formed a huge canyon in this area, and the mountain walls on both sides of this canyon are almost straight, fortunately, the water flow in this area tends to be gentle, but in this unknown situation, Cook does not dare to use magic props lightly, not to mention the complex and unknown terrain conditions, just say that if there are any unknown strong creatures, it is enough to make Cook more vigilant,

"Knock, knock, knock," Varuman waved his six-edged hammer in frustration, as Cook decided to let Valruman open the way, and carved a path out of the cliff that had been washed by the underground river.

It's like digging a groove on the cliff, of course, the job of opening the way has to be handed over to Varouman, Varouman really lives up to the trust, the magic weapon is good, every swing can make this groove advance more than a meter in length,

"Master, look," in half a day, a road thousands of meters long was formed, and in the groove in this cliff, Cook and the others finally approached the place where the light was, and Hadowsi pointed to a huge platform thousands of meters above the water from the water, and this platform was lit up with bursts of light, looking like a huge city,

"Hadowsi, do you know what this place is," Cook asked,

"Master, I haven't heard of any kind of city under the Gobi, although there is an underground black market here, it is said that the black market is very chaotic, and there is no such huge building, master, look at this city, it gives people a very noble feeling," Hadowsi couldn't find any adjectives to describe the city, with the word noble,

Cook nodded, the city is full of art, and it is okay to describe it as noble, Cook said to Varumman: "Dig up, let's go and see,"

"Master, you are simply wonderful," Varuman didn't want to dig for a long time, Varuman looked at his prism hammer distressedly, this is a magic weapon, it is his most beloved treasure, but it is actually used to dig stones, it is strange that Varuman is not depressed, hearing Cook's order, Varuman is even faster, because of the distance of kilometers, as long as the excavation has passed, there is no need to dig, and Varuman's treasure weapon does not need to dig stones,

"There is no breath of life," when Cook stood on the platform, he said that it was a platform, if it was on the surface, it must be the peak of the mountain range, hundreds of square kilometers in size, but Cook did not perceive any breath of life,

"Yes, master, I feel a little strange," Hadowsi also spoke, hearing Cook say this,

Varuman sneered: "Of course it's weird, look at the buildings in this city, there is no damage at all, and the city seems to be still functioning, look at the magic crystal lamps that are lit, and there is not the slightest dust on the ground,"

Varuman was very unhappy with Hadowsi, because this guy was snickering when Varuman was digging the road just now, no, Varuman was waiting for Hadowsi here,

Cook is looking closely, to know that the building itself represents a huge amount of information, the style of the building, the pattern, and the layout, each era, each race is different, as long as you are an insider, you can roughly guess what era these buildings belong to, what race,

"It's strange," Cook muttered with some confusion after a moment of careful observation,

"Master, what's strange," Hadowsi quickly asked, hearing Cook's muttering beside him,

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