What are the advantages and disadvantages in their own hands.

There is no doubt that this watchtower is his greatest advantage, as long as he is in the watchtower, he is invisible compared to robots.

But only if you don't take the initiative to attack the enemy. Thermally sensitive robots are not fools either, and if attacked, the aggro system will automatically set the watchtower as the first target.

Don't...... The only way to get out of here is to take the whole watchtower with you?

It's a fantasy.

Thinking of this, Mu Yang had a headache. Isn't it because of my own lack of strength? If you were to be your old self, what would it matter if you were a robot, a thermal-sensing robot? You guys come up together and slap you straight into cats.

Suddenly, he froze.

Isn't it ...... What important things did you overlook when you entered this watchtower?

Mu Yang walked to the edge of the room and quietly tapped on the wall, thoughtful.

"You ......" Pan Wei on the side wanted to say something again.

Mu Yang glanced at her, didn't say a word, and turned around and walked directly to the fifth floor.

Being in the same room with Pan Wei, there are more and more annoying pink gases, and Mu Yang can't stand it.

Walking to the fifth floor, Mu Yang found that the space here was actually larger than that on the fourth floor.

He hurriedly glanced at the room layout and continued towards the sixth floor.

Something strange happened, the space on the sixth floor was a little bigger than the fifth floor.

Mu Yang remembers that looking from the outside of this watchtower, it was clearly top-heavy.

But why is it that inside the watchtower, the space is more open the higher you go?

Mu Yang carried the machine gun and walked to the seventh floor.

The space on the seventh floor seems to be back to normal, about the same size as the fifth and sixth floors.

The eighth floor, above the seventh floor, was sealed with iron chains, and entry and exit were forbidden.

But at this moment, Mu Yang has already figured out the strangeness.

The trick is that there is another layer of secret space in this watchtower.

The interior of the watchtower is divided, and on one side is the first to seventh floors, where soldiers and researchers are stationed and work.

On the other side, the secret space is next door, separated by a thin wall, and I don't know what is stored.

The fewer floors a secret space occupies, the larger the space; Conversely, the more floors the secret space occupies, the smaller the space will be, even if it is relatively below the watchtower.

If you want to know what is hidden in the secret space, it is very simple, just break these chains and reach the eighth floor.

Mu Yang stepped over the frost on the seventh floor and walked towards the blocked staircase.

At the same time, if you're lucky, you'll probably be able to solve another mystery at the same time. That's why it's so cold inside the watchtower when all the energy is gone.

With a raise of his hand, Mu Yang had already broken the iron chain blocking the progress with a machine gun, and when the metal chain fell to the ground, Mu Yang also strode up to the eighth floor.

"I see......"

Seeing the scene on the eighth floor, Mu Yang immediately understood everything.

Secret space does exist in this watchtower. And on the eighth floor, the top floor of the watchtower, the secret space and the human habitation space converge into one.

On the eighth floor, half is a room, half a "giant well" containing liquid. And the depth of this well. It extends from the bottom of the watchtower to the eighth floor.

Mu Yang walked in front of the giant well and glanced down.

It's cold to the bone.

The temperature of the liquid in this huge well is definitely below freezing, but for some reason, it remains liquid and does not freeze. I don't know what chemistry is in it.

"It seems that the reason why the watchtower can make even the heat-sensing robots automatically ignore it has been found."

"It's because of this huge well, which occupies half of the watchtower, that makes it so cold here."

The two questions were solved at the same time, but a more mysterious and unexplainable question surfaced in Mu Yang's mind.

Why, the builders of this watchtower, wanted to build such a huge well here?

For what scientific research? This obviously doesn't make sense. The watchtower's main duty is to keep an eye on the Quartet, and as such a large scientific research facility, it should not be here.

Well, there is only one explanation left.

That is, the creation of this giant well itself is to evade the detection system of heat-sensing robots!

Yes. When all possibilities have been denied, the only remaining explanation, no matter how impossible, is the only answer.

The eventual annihilation of humanity on St. Fortt was not due to the loss of control of the ancient robots. Rather, from the time they landed on this planet, they were in a hostile relationship with those robots.

Humanity, from the very beginning, treated these cyborgs as equal enemies, built buildings dedicated to fighting them, sent troops and scientific researchers.

This is a war, a war between two civilizations, not some simple loss of control and accidents.

St. Fortt on the Star ...... What happened so many years ago to make things get to this point?

What kind of secrets are hidden in these robots?

No one can know.

Just as Muyang was pondering, a faint sound of vibration came from outside the watchtower.

When he came back to his senses, he realized that because of his excessive contemplation, time had passed unconsciously for nearly an hour, and he was unaware.

In the distance, a heat-sensing robot is approaching. The next round of patrols is just around the corner.

At the same time, a bold plan was also born in Mu Yang's mind.

He walked down the seventh, sixth, and fifth floors quickly, and when he passed by the fourth floor, Pan Wei and the three of them glanced at Mu Yang. Mu Yang walked to the third floor.

He grabbed a relatively intact corpse and ran back to the eighth floor.

On the eighth floor, Mu Yang carried the corpse's hair and soaked it in the cold well.

"Just look at any adverse reactions that the liquid can cause to the human body."