"Damn Shemos, didn't you say it's easy?" Jia Zhengjin, who led everyone all the way down vertically, digging thousands of meters wildly, was embarrassed at the moment.

obviously has the power of the god of war Mars, plus the two divine beasts of Ugly and Chou, Cangyan, although with the unconscious Aipar, who has become Lori, is considered a burden. But Perrin and Harry's combat effectiveness is also good, and together they are still disgraced when dealing with underground monsters, and they are quite dangerous several times.

The underground monsters have rough skin and thick flesh, and their physical and magical resistance are very perverted, plus there are a lot of them, and Jia Zhengjin and the others almost desperately fought for their lives to finally succeed in breaking through.

Facing Jia Zhengjin's questioning, Xie Mosi touched his head awkwardly: "Eh~ I missed the master's control of the power of the god of war Mars, and subconsciously calculated according to your most proficient control of this power......"

"What do you mean, or is it my fault that I can't use the full power of the god of war?" Jia Zhengjin glared at him in displeasure.

"No, no, it is quite rare for the master to be able to use the power of the god of war Mars to such an extent in such a short period of time. It's just that if you use it more skillfully, you can ...... it very easily."

Xie Mos changed his speech, although Jia Zhengjin knew that the meaning had not changed, but at least he felt a little more comfortable: "Forget it! It's almost there, right?"

"According to the intelligence of the previous master, it should be at this depth. Shemos replied, "Just dig left and right, and you'll probably find it." ”

"Okay, if there's a problem, I can't spare you. Jia Zhengjin gave a warning and immediately asked everyone to help dig together.

In addition to the unconscious Apar, and Perin, who needs to take care of Apar, of course, there is also the magical creature Seemos, the three of them are watching from the side, Ugly, Cangyan, and Harry all dig around with the manuscript.

By the way, digging all the way down from above, these stones in the Demon Realm that seem to have been soaked in blood turned out to be [Bloody Stones]!

Speaking of bloody stones, it is an important material for upgrading the Demon Altar and building a higher-level Demon Castle! Who would have thought that this material is actually in the Demon Realm, and it is the main factor that makes up the earth, and it can be seen almost everywhere.

In order to restore Perrin's normalcy, Jia Zhengjin excavated underground to find the so-called Dark Treasure Jade.

From a small area to a huge underground space, and was about to ask Shemos if there was a so-called dark jade, Chou suddenly shouted: "Keane, is this what we are looking for?"

Jia Zhengjin hurriedly turned around and rushed over, quickly looking at what the ugly ugly had dug up.

At the end of the stone wall in the tunnel she had dug was a lot of pure black stone with a strange sheen, which looked like the dark jewels that Shemos had said.

And along with them are some minerals that look familiar.

"Sure enough, it's Dark Baoyu, the previous owner is right!" Seemus became excited and flew around Baoyu, "There are also a lot of associated minerals, and the information is very accurate......

"Is this the Dark Treasure Jade?" Jia Zhengjin asked, "So what should I do now?"

"You dig out a piece and hold it in your hand first, study it for me, and collect some information!" said Shemos busily, "It will be good soon!"

"Okay!" Jia Zhengjin immediately picked up the manuscript and carefully chiseled a small piece of dark jade.

【System】You have obtained the Dark Jewel!

[Dark Jade] is a special underground mineral of the Demon Realm, and its specific effect is unknown.

The system knowledge is very simple to introduce, and it is impossible to give the specific situation of Dark Baoyu at all.

Xie Mos circled around the dark jade in Jia Zhengjin's hand, and then his eyes shot light, as if analyzing the information of minerals. When it was almost over, he stopped and said to Jia Zhengjin: "Okay! The information has been successfully obtained, and the master can put away the dark treasure jade!"

"It's that simple?" Jia Zhengjin asked suspiciously.

"Yes, it's that simple!" Semus laughed, "How complicated do you think?" or did you always think I had something in mind?"

Jia Zhengjin really had this in mind, but now he was finally completely relieved, but he was still very puzzled: "What is the use of this dark jade?"

"Actually, it's not a big deal," Semus replied, "They are one of the most important factors in the Demon Realm, and their biggest effect is to make the Demon Race's power increase faster. Speaking of which, if you can dig up some more dark jades and take them back to pave the way in our underground palace, whether it is the Demon King Singh or the Demon Army, the growth of strength will be very fast!"

"Underground palace, demon army?" Harry looked at Jia Zhengjin suspiciously, "Lord Keane, why can't I understand what you're saying?"

"If you don't understand, forget it!" Jia Zhengjin said, "Don't ask so much. ”

"Yes!" Harry immediately shut his mouth obediently.

Semos's suggestion made Jia Zhengjin interested. It can increase the strength of the Demon King Singh and other demon armies more quickly, which is equivalent to building a powerful demon army of its own. Although the demons are not easy to take outside at will, they can come in handy at a critical moment, and may even save their own lives.

After all, the god of death Kronos has successfully won the demon king Singh before, and maybe more powerful enemies will appear in the future, and if the strength of this demon army is not improved, I really feel at ease!

Thinking of this, he immediately excavated, desperately collecting the dark jades and associated ores on the stone wall into a virtual backpack.

【System】You have obtained the Dark Jewel!

【System】You have obtained Obsidian!

【System】You have obtained perovskite!

【System】You have obtained Aluminum Ore!

Surprisingly, these familiar associated minerals are indeed extremely precious and scarce minerals.

Obsidian is a super energy source, which can be used to replenish the energy of many scientific and technological products, especially for one's own flying machine! I had been thinking about where to find it before, but who would have thought that there would be one underground in the Demon Realm!

It is said that obsidian is born from stars, could it be that the demon world was also a star a long, long time ago?

Titanium ore is an essential mineral for advanced technology in the later stages of manufacturing, and it has also been dug in the underground palace area before, because it is relatively difficult to find, so it is also very important!

Aluminum ore is relatively ordinary, at least the ore that the dwarves can dig can mine, and it is not scarce. But at least it is a very important mineral resource.

Jia Zhengjin dug up all the minerals in this small area and obtained 122 dark jade, 19 obsidian, 57 titanium ore, and 323 aluminum ore.

Although he still wanted to continue digging around, he remembered that there was something more important, so he immediately stopped, turned to Semos and said, "Okay! Now you tell me how to cure Perrin, if you dare to lie to me, I will let you walk around without eating!"