Guderian and Natasha came out of the mine and dived out of the mine, and shortly after they got out of the pit, there was a hurried whistle in the mine. Immediately after the entire pit and camp were in a commotion, the Minotaur and the Drow overseers and guards gathered to block the access to the entire top of the pit, and then sent a team down to the various caverns in the pit to search. Both Guderian and Natasha felt the atmosphere of the camp from a distance in the camp, and they couldn't help but be glad that they had a cloak from the lich, otherwise it would be a problem to travel through the underworld, let alone steal other people's "technology".

The two of them lurked at the entrance of the passage that resembled a ray of sky, and waited for about an hour before a locomotive roared from the kobold camp in the billowing smoke. Halfway through the entrance, Natasha floated with Guderian onto a wagon full of ore — hitchhiking.

"At this speed, it's just like that, the war horse is running at full strength. Guderian sat on the ore pile with Natasha in his arms, looked at the rapidly retreating stone walls on both sides, and sighed: "This kind of mechanical power, if it can be developed, is indeed incomparable to many human beings. I don't know where the underground minotaur and Drow learned it, could it be that they created it?" Speaking of this, Guderian thought of the "flying machine" that the old Drow mage said when Natasha was frozen in ice, and he didn't know how much impact such a mechanical monster would have on the world if it appeared.

"This technology should not have been created by themselves. Otherwise, the large locomotive under our feet should not use the magic circle as a power aid. Natasha looked at the ore-laden wagons and saw that each wagon was inlaid with magic crystals depicting frivolity.

"By the way, what are the minerals they use for combustion?" asked Guderian.

Natasha thought for a moment and said, "That kind of pitch-black mineral is called coal in the "Continental Minerals" record on the surface. However, there are not many applications on the surface, because the impurities are difficult to deal with, the purity is not enough, and the gas emitted from combustion will poison people, so except for some mages who will use it to do some experiments, the fuel is basically not used by the people. ”

"Is there a lot of this mineral on the continent?"

"Quite a lot. Basically, there are large ore veins in all four countries. ”

"If the enemy were to build such a conveyor line on the surface, it would be very difficult for humanity to deal with the war it would bring. On the way back, if we have the chance, we need to learn more about the enemy's hole cards. Guderian said solemnly.

"Good. It's all up to you. Natasha snuggled up in Guderian's arms, and she looked satisfied wherever the man went.

It took about half an hour for the locomotive to pass through a passage that resembled a line of sky and enter a hilly area. The Underworld is mostly similar, with the exception of the Mushroom Grove, which is an unknown glowing plant, and then an unknown crop cultivated by the kobolds. As long as the land that can be cultivated, it is basically used, which shows how huge the population of the kobold race is in the underground world.

In the dense world, the smoke of the locomotive rumbles. Guderian and Natasha studied the direction of the locomotive on the map, and found that the locomotive was no longer heading in the direction of the city of Rosa, but was cooperating with the route they were about to take. Further on, there was another city more than 300 miles away, so the two of them hitchhiked with peace of mind, and at the same time had a good rest. It has been about half a month since they left the abyss battlefield according to the surface time, although the two of them did not hurry up and were a little tired, why not have a machine to travel? When they came, there was a skeleton mount summoned by the lich and the lich himself led the way, and when they walked, they relied on two feet and there was no guide, even if there was a map given by the lich, they still let the two go wrong a few times. It's rare that they don't have to walk, and the two snuggled up and fell asleep unconsciously.

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"General, the goal has reached the conditions for communication, whether to start preparing for communication. "On the mainland, in the fleet outside the planet, Alice, who was dressed in a tight blue uniform in the main control room on the mothership, said to the middle-aged man in uniform on the main seat. The tight-fitting uniform showed her plump and tall figure.

"Good. The general didn't look at Dr. Alice, but looked down at some information or materials on the screen in front of him: "I will order the fleet to supply you with maximum energy." ”

"So, I'm going to get ready for communication. Alice left the main control room on her own.

Through the corridors and elevators, Alice returns to her workshop. This is a space of nearly 400 square meters, in which various instruments and machinery are placed in an orderly manner. In the workshop, more than a dozen workers in white coats and overalls are waiting by a machine with a large screen and various buttons.

"Let's get started. The general has already allowed. When the energy supply catches up, you start the process. After Alice finished speaking to the group, she walked over to a machine that resembled a freezer, opened the door, and lay down to enter.

Soon after, the screen of the machine surrounded by a group of workers in the workshop showed a scene of "sufficient energy supply, do you want to start the program?" Yes/No. So, everyone chose "yes" with excitement and anticipation......

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“...... Guderian...... Guderian ......"

In his sleep, Guderian was caught in a dark world, and a voice kept calling to him. Guderian walked unconsciously in the darkness, towards the source of the sound.

Guderian ...... Guderian ...... "That voice is ethereal, sometimes far and sometimes near. Guderian walked unconsciously for a long, long time, without finding the source of the sound. The whole world, except for pitch black, is still pitch black. Suddenly, Guderian came to his senses, "Where am I?" What about Natasha? In the dark world, Guderian looked left and right, his face full of anxiety.

"Guderian......" The voice of the call rang in Guderian's ears again.

"Who?" said Guderian was on guard.

"Guderian......" The voice suddenly approached, causing Guderian to take a few steps back.

"Who is it?!What is this place??, Natasha?" Guderian was anxious and uneasy, but did not sense the danger, so he shouted in the direction from which the voice came.

Guderian ...... Guderian ...... "The voice didn't seem to hear Guderian's words, and kept calling Guderian's name, echoing in this dark unknown world.

Guderian couldn't see anything, but the voice kept ringing in his ears. This made Guderian irritated, especially since he was the only one who existed and Natasha was gone. Guderian ignored the constant call of his name, and calmed down to think about his previous situation with Natasha on the locomotive.

"Could it be that I fell asleep with Natasha and was captured by the enemy?......? Is this a dream?" Guderian reached out and touched his face and body—nothing. So Guderian, in surprise and unease, tried to stimulate blood control. "Hmm, I can't feel the presence of a physical body...... Guderian was really scared half to death this time - could it be that he died, this is the state of the soul?

"Guderian, what's wrong with you?" Natasha was awakened by a convulsive Guderian. I saw that Guderian, who had been holding her well, had fallen on the ore pile, her whole body was convulsing unconsciously, and blood was overflowing from her nostrils, ears, eyes, and corners of her mouth. Natasha was frightened, picked up Guderian with a crying voice, and checked Guderian's physical condition.

Just when Natasha didn't check out anything and didn't know what to do, Guderian stopped convulsing and slowly opened his eyes.

Natasha's sad and frightened expression immediately turned into excitement and joy, "Guderian!" Natasha's smiling face with tears came into Guderian's sight. Guderian's confused eyes finally eased - he almost thought he was really dead, and when he thought of this, he remembered what the lich had been like when he fused his soul, so he firmly instilled in himself that he was not dead but just in an unknown situation, so he woke up from the darkness of the world.

"It's okay. Guderian struggled to sit up from Natasha's arms, took her into his arms, and gently stroked her back.

"Woooooooooo......oo I'm scared to death......" Natasha vented her emotions from sadness to joy after Guderian's condition, which was a happy and excited cry.

"It's okay......" Guderian comforted Natasha while silently sensing his body and finding nothing abnormal.

"What happened to you just now?" After a long time of Natasha calmed down, she squeezed out of Guderian's arms and checked Guderian again.

"I don't know ......," Guderian said in confusion. Natasha fell into deep thought for a moment, and so did Guderian......

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In the fleet outside the planet, in the main control room.

"General, communication failed. Alice stood weakly.

"What the reason. The general's brow furrowed.

"The target is now not on the surface, but in the underworld. Due to the existence of the unknown barrier of the planet, coupled with the thickness and density of the earth's crust, the projection is already a little difficult, and the communication is not enough. It's that I'm too anxious to think that this won't affect the initiation of communication. Alice reproached herself.

"How many times can the fleet energy sustain such communication?" the admiral asked, not blaming Alice.

"Initiating the initial communication procedure, with the current energy of the fleet can support three to five times. But as long as the initial communication is successful, the subsequent communication will not require much energy. Alice said.

"Hmm. So, is the next communication of the doctor assured? ”

"You can only wait for the target to leave the underworld before you can communicate again. "Alice has been sharing the goal horizon for the general to watch these days. So the general knows the target situation very well.

"Good. Well, the doctor continues to keep an eye on the goal at all times. ”

"Yes. Alice left the main control room. However, I can't help but think of the passage between Guderian and Natasha and all kinds of inappropriate pictures for children after that. Alice's cheeks turned crimson, so much so that when she returned to the workshop, the staff kept staring at her for some reason. Of course, those images Alice didn't share with the general or anyone else—it was too ......

(Chapter 1)