Chapter 25

Liu Siyi possesses some of the abilities of a hero, but it cannot be guaranteed that the Nightfall Pendant, which only works for heroes, will also work for him.

Now the problem arises: if he doesn't go down, he will only know whether the Nightfall Pendant can grant him night vision when night falls. If he goes down, he won't have night vision to come back up?

Damn! He might as well go down and see for himself.

Liu Siyi felt helpless. Having played some dungeon games, he was very curious about the underground world. Although there were some dangers, he decided to go down and explore it personally.

Looking at the underground passage entrance, which was less than four meters high, he could imagine how the three-meter-tall giant bears, the dwarves' mounts, managed to pass through. The tunnel, though small, had its advantages, at least this was what Liu Siyi was willing to see.

The tunnel being small meant that at least the dwarves' seventh-tier unit, the Magma Dragon, couldn't pass through. Of course, if the dwarves had Magma Dragons, they could crush Liu Siyi whether they deployed them or not.

Handing over the unnecessary treasures to the Thunderbird and instructing it to wait on the mountaintop, Liu Siyi walked alone into the unknown darkness.

Near the entrance of the underground passage, there was still some light, allowing him to see the surroundings clearly. As he continued deeper, the light grew dimmer until it was pitch black, and he couldn't see his hand in front of his face.

It was very dark, extremely dark, but in this absolute darkness, the black eye on the Nightfall Pendant hanging from Liu Siyi's chest emitted a faint, hazy black light. In this dark environment, it was almost impossible to notice unless one looked closely.

Just as Liu Siyi thought he indeed didn't have night vision and was about to turn back, suddenly, in the next blink, he felt he could see. Everything was very clear, shapes, sizes, distances, except for colors, which gave him a very strange feeling.

Entering the underground passage, he didn't see the rugged terrain but a tunnel with obvious signs of repair. However, it was clear that this was not dug by the dwarves but formed naturally by the movement of the earth's crust and then roughly excavated by the dwarves.

Not only was the ground of the underground passage leveled, but there were also marks of shovels on the walls, and every few meters, there were traces of burnt-out torches.

Clearly, before the slain dwarf hero developed this area, the usage rate of this underground passage was not high.

X-ray Vision.

Although there were tigers leading the way, Liu Siyi still immediately cast this reconnaissance spell upon entering the tunnel. His mental energy spread out, and while it consumed a lot of energy when penetrating soil and rock, a part of it still moved forward, just like before.

The number of tigers was still eight, but it was evident that each time he leveled up, the tigers became stronger. Although they were still third-tier units, they seemed much stronger than typical third-tier units.

Because the consumption of mental energy when penetrating soil and rock was so high, Liu Siyi had a sudden idea: Could he control this mental energy and make it act according to his will?

This was a good opportunity to try.

Anything done for the first time is always difficult, and controlling mental energy was no exception.

Previously, casting spells and meditating were done step by step according to tradition. In game terms, this meant knowing the skill and being able to use it but not understanding the principle, let alone innovating.

Liu Siyi didn't realize that this idea and the subsequent practice marked an important step in controlling mental energy.

Focusing his mind, he controlled his mental energy.

What is mental energy? In the real world, experts would say it is the energy that enables thinking and reasoning.

Not entirely wrong, but in this magical world, mental energy and the soul have a relationship similar to that between strength and the body. The stronger the body, the greater the strength, and similarly, as the soul grows stronger, mental energy also becomes stronger.

The strength of physical power can be measured by lifting weights or carrying objects, but there is no specific instrument to measure mental energy, nor a clear form of expression. Liu Siyi knew this was mainly because there was no method to cultivate mental energy in the real world, unlike physical strength, which can be increased through exercise.

With the method of meditating to cultivate mental energy, not only could he sense elemental power, but he could also use mental energy while absorbing it. Additionally, when casting spells... now, Liu Siyi needed to find the feeling of using mental energy again.

This feeling was easy to describe but hard to achieve. It was just a matter of bringing back that feeling. However, truly controlling mental energy required a lot of training, and it was unrealistic to expect someone who had only leveled up twice and suddenly had strong mental energy to control it quickly.

Liu Siyi naturally didn't think too much about it. He was standing at the entrance of the underground passage, eyes closed, carefully sensing the mental energy spreading out. The mental energy spread very quickly, and his brain soon clearly felt the range of perception rapidly expanding.

Soon, the range of X-ray Vision stopped increasing, but through perception, this range was reduced by more than half compared to on the surface. After all, this naturally formed crack was not a straight line.

The underground passage had only one path, so he just needed to follow it.

Every time he walked a certain distance, Liu Siyi would cast X-ray Vision to scout the situation ahead.

For now, he couldn't control his mental energy, and he wasn't in a hurry. He used the most straightforward method, which was to practice until he became proficient. This way, he could both scout and increase his proficiency. The more he cast, the more proficient he became, and when his proficiency increased, it would naturally come to fruition.

The underground passage was much longer than he had initially scouted, sloping downward for at least thirty kilometers. He didn't know how long it took, but he finally reached the end.

However, he didn't expect that the end of the underground passage connecting to the underground world was blocked by soil. Moreover, this wall of soil was very thick.

From the X-ray Vision, he could clearly feel that beyond this wall of soil was a vast underground world.

But? Why was it blocked? A dwarf hero had already entered the surface world through this passage and then sealed it with soil, and it was sealed from the inside out, which had many implications.

Clearly, someone didn't want this passage to be discovered. This person could be the dwarf hero, and Liu Siyi hoped it was him because that would mean there were no worries.

But the possibility was too small. It was more likely that the dwarves were secretly infiltrating and developing the surface world without being discovered by other races.

This made things more complicated. If the situation here was intricate, Liu Siyi would feel a headache, as he didn't know how to navigate between the various powerful factions.