Although this robot still maintains a standing posture, its chest has been completely penetrated, and it looks like it was destroyed in an instant by some kind of strong sharp weapon.
He Ao looked at several more robots, and almost all of them were in the same situation. They were stabbed through the chest in an instant and killed instantly.
It should have been the same enemy.
These wounds are not that long ago and should have been left at the same time as the laser-melted pits on the ground.
He Ao's mind began to restore the battle scene at that time.
The intruder broke in through the crack in the knocked-out door. These robots reacted quickly and fired laser cannons, but their movements were still a step too slow. The intruder escaped the first wave of attacks and fired at extremely fast speeds.
The speed will destroy them in a short time.
He Ao took a closer look. The robots further back showed signs of movement, but their movements did not deviate from their original formation. This proved that these robots were destroyed in a very short time, and they did not even have time to change.
Formation.
Two information points are obtained here. The enemy moves very quickly and holds a strong weapon that can easily pierce alloy armor.
He Ao put himself in the position of the invader and thought about whether he could successfully complete the counterattack surrounded by these old robots.
There is a chance, but it is difficult. Even if it succeeds, it will take a lot of effort and it cannot be completed in such a short time.
The opponent's combat power is also much stronger than his. If they meet head-on, he will most likely be killed instantly.
He Ao rubbed his eyebrows. Although he had expected it, the actual discovery of this fact still made him a little confused.
"What's wrong?"
Liu Nan looked at He Ao looking at these robots in a daze and asked softly.
"These robots were destroyed not long ago," He Ao did not hide anything and expressed his analysis. "This intruder is very strong. These robots were basically destroyed in a very short period of time. It is very likely that it is still there."
We have to be careful in the tower, if we meet, we may all die here."
"Um."
Liu Nan shrank her head and nodded slightly.
He Ao looked away at this time and fell behind the robots. Old mechanical armors were leaning against the dark wall behind the robots.
Inside these mechanical armors, there are complete skeletons. These skeletons do not seem to have suffered any damage, and the traces of time are flowing on the mottled bones.
He Ao walked forward and looked at the bones carefully.
There are no holes pierced by sharp weapons on the mechanical armor, only thick accumulation of dust. This proves that when the intruder entered the tower a few years ago, these mechanical armors were scrapped, and the operators inside were probably already dead.
.
He Ao carefully observed the mottled marks and signs of decay on the bones. These bones may have been preserved here for hundreds of years.
They were sealed in a closed space in a high tower, similar to being stored in an airtight tomb, so they were able to avoid weathering and were preserved.
He Ao turned his head and glanced back at the destroyed robots, then looked back.
There are no obvious scars on these bones. The battle marks on the ground were left a few years ago, and there are no older battle marks left.
This proves that when the owner of these bones died, there was most likely no fierce battle, and even the surrounding robots did not participate in the battle.
Some of the bones in the mechanical armor are still wearing faded, decayed and broken uniforms, like some kind of military uniform. The owners of these bones may be the soldiers guarding the tower.
One day hundreds of years ago, before the human race on this planet became extinct, even before the invasion that destroyed these robots.
The tower most likely suffered a devastating and strange 'invasion'. This 'invasion' did not destroy the gate of the tower, or even trigger a counterattack by the intelligent machines guarding the tower.
The soldiers wearing mechanical armors guarding the tower fell into a long sleep before they even had time to react.
There are more and more weird things hidden inside this tall tower.
He Ao took a deep breath and walked slowly towards the depths of the tower.
If there was something that killed these soldiers hundreds of years ago, then it could not have killed only these soldiers. Everyone in the entire tower was probably destroyed in that incident.
Because even if there is still some order in the tower, the bones of these guards will not be discarded here casually.
Judging from the fact that the tower has to deploy such a tight defense at the door, perhaps when the tower door is closed, the disaster that will destroy human civilization on this planet has already begun.
The people in the tower most likely used the tower as a refuge.
But now it seems that this refuge has not fulfilled its mission.
After entering the tower, there is not a straight path that goes straight into the center, but a circular path along the wall.
The outer side of the ring road is a wall, and the inner side is a series of small doors. These doors are basically locked. He Ao can sense that the thing that attracts him is in the center of the tower.
It is naturally impossible to reach the center of the tower through the ring road.
Just when he was thinking about whether to break open a certain iron door and walk inside, an iron door that was ajar appeared in his field of vision.
He walked to the door and slowly opened it. The first thing he saw was a wide basketball court, then a tennis court, a badminton court, and neatly arranged table tennis tables.
This seems to be an entertainment and sports venue.
He Ao crossed the iron gate.
Skeletons lay on the ground in twisted and random shapes.
There were also no signs of resistance or injury on these skeletons.
They should have been the people who were still exercising in this sports field when the 'invasion' occurred. They did not have time to make any moves and fell into eternal stillness.
As expected, the 'thing' that killed the soldiers at the door could not have killed only the soldiers.
At first, He Ao thought that the soldiers might have fought back and been injured, but no bones were injured.
But now looking at these athletes lying down casually, He Ao's thoughts changed.
Even if people have a little time to escape or resist, they will show some kind of aggregation or tendency, and the skeletons now displayed in front of He Ao basically seem to have suddenly fallen down during exercise or viewing.
No one made any attempt to escape.
This proves that disaster may strike in an instant, and these people may die before they even react.
There are two locked small doors in the sports ground, which lead to the left and right areas, but there is no door leading to the center of the tower.
After thinking for a while, He Ao withdrew from the sports ground without trying to pry open the two locked doors on the left and right.
He was going to see if there were any other open doors that could lead directly to the center of the tower.
He continued walking about a few dozen meters, and a new open door appeared in front of him.
There is a long corridor leading from the main door. On both sides of the corridor are small closed doors with numbers on them. They seem to be dormitories inside the tower.
He Ao walked into this corridor.
He had a hunch that the end of the corridor was the center of the tower.