Although Chen Zheng has always known that the hope of returning to Earth is very slim, but even when this slim hope is shattered, it is really uncomfortable to drink this bitterness.

Chen Zheng probably knew why the drift valve was destroyed.

The drifting valve that can break the void and take people to another planet will inevitably require a huge supply of energy. Although it is difficult to estimate how much energy is needed, Chen Zheng knows very well that if converted into electricity, it is definitely an unimaginably large number.

What does it mean to send a few people, something out of thin air to another planet? Even the closest planets are at least light-years away! A little further away, it's about to break double digits!

Therefore, no matter how high the energy utilization rate of the drifting valve is, it will inevitably consume almost infinite energy.

And the source of that energy, it is certain that only the substance of zero crystals can be stably supplied at present.

Zero crystalline is easy to use, easy to store, and most importantly...... According to the mass-energy equation, if matter is completely annihilated, the energy emitted by it is also unimaginable.

Although it is not known how the alien technology uses the Zero Crystal, coincidentally, the Zero Crystal that turned into energy finally disappeared - it was the kind of complete annihilation, and no trace of existence could be found.

So what is certain is that the drift valve must contain large pieces of zero crystals.

As a monster that feeds on Zero Crystals, it's not surprising that Tear Drift Valve out of the crowd to eat Zero Crystals.

Moreover...... Maybe it was the Zero Crystal in the drift valve that attracted the monster.

When Chen Zheng thought like this, all he saw was the big hole in the floor.

That's supposed to be the path for the monster to appear here. Chen Zheng didn't rush to explore the cave, and first looked around.

Not to mention, he really made other discoveries - on a corpse with green hair, Chen Zheng found another metal object that had obviously been destroyed by an external force. From the outside, it was supposed to be an ornament, with a space about the size of a fingernail in the center of the ornament.

It's not hard to guess that maybe there was a piece of zero crystal buried in the jewelry a long time ago, and maybe this is the cause of Green Fur's death?

Chen Zheng, who just wanted to throw away this piece of metal, suddenly stopped again - since it can be used as an ornament, then this metal should be more precious, right?

Thinking like this, Chen Zheng put it away.

Next, Chen Zheng demolished the entire tin house, but unfortunately after a long time, nothing else was found.

Is that all there is to it?

Chen Zheng looked at the big pit, took a deep breath, and slowly poked his head over......

…… It was pitch black inside.

Even if it is illuminated with a tactical flashlight, it can be seen more than ten meters away, and then it becomes pitch black.

However, the amount of information that can be seen clearly in these places is still very large.

First of all, the closest to the ground is the thick floor, which is more than half a meter thick, and it is supposed to be some kind of special alloy, unlike the iron floors where the other places are only 5 centimeters thick.

Chen Zheng used his lightsaber to cut it and found that the floor range of special thickness was not small, its area was about half the area of the room, and it was right in the center of the room.

Chen Zheng raised his head and looked at this room, which was probably a slightly larger bedroom.

Although Chen Zheng thought it strange before, he felt that aliens might be this habit. But now that he had discovered these oddities, the sense of disobedience had become even greater.

The layout of this tin house......

Anyone who looks at it will find it strange - is it really reasonable to put an ordinary bedroom at the end of a passage facing the main door in this tin building the size of two basketball courts?

Because the tin house is a single-story building, Chen Zheng has never thought about this aspect before, but when he demolished the entire tin house, the strange sense of disobedience was even better.

And this thick iron lid also shows that there must be something hidden underneath!

Chen requisitioned the metal lid with his lightsaber, then removed the metal crumbs little by little, and then ...... A more solid ground appeared in front of Chen Zheng.

The ground here is not ordinary soil, it looks artificially formed. In other words, it looks like it must have been poured with something very similar to cement.

Fortunately, Chen Zheng has a ready-made cave to observe.

The soil layer is still deeper.

From the entrance of the cave to a depth of about 5 meters below, there is this concrete-like thing, as if there was a large pit here, and then it was solidly encapsulated by this concrete.

Just when Chen Zheng thought it was a whole piece of cement, he suddenly noticed some reflection of the metal—it was when he accidentally cut the cement underneath while cutting the upper layer of metal. And the metal reflection is reflected from the fracture of the lightsaber.

Chen requisitioned his lightsaber and cut down a little on the concrete floor, and after removing the rubble, the metal object also revealed a little - its surface was smooth, the exposed one was about a dozen centimeters long, and it was inclined downward at an angle of about 30 degrees, and the other end was buried deep in the cement.

This is......

Chen Zheng didn't dare to draw conclusions, and cautiously continued to dig.

When he dug more than a meter deep, the metal object finally revealed its full extent - it was a handrail. To be exact, it's a stair handrail!

That makes sense!

No wonder the passage directly facing the gate leads all the way here: wouldn't it make sense that the staircase should be built at the end directly opposite the gate?

So, why are there stairs in a bungalow?

The answer is self-explanatory.

Underground ...... of the tin house There's something! It was just that something happened and it was sealed off again!

Chen Zheng took the flashlight again and returned to the side of the round pit, trying his best to shine down...... There is indeed mud under the cement, and it is difficult to say deeper places, and it is difficult to see clearly if you don't go down.

After a little thought, given that he had been tossing and turning for so long, he had made a lot of noise, and there had been no reaction under the cave...... So Chen Zheng decided to test it further.

He threw the tactical flashlight down.

Then, a ray of light farther and farther away, and after a few seconds, the sound of a flashlight hitting the ground was heard, and the light below the cavern flickered before disappearing.

“！？！？”

Chen Zheng suddenly got goosebumps.

At the moment when the light disappeared, it seemed that some shadow was suddenly retracting into the darkness that the light could not reach!!

Here's ...... Is there really something!!

And this cave is most likely the way the monster came out......

Could it be ...... There's a lair down there!?

Monster's Lair!?