"This is……"
Xu Xin and Xu Ying also noticed the card immediately.
The alien invader walked to the wall and stuck the card on it.
Immediately, red ripples began to spread out from the point where the card touched the wall!
The light red color that was like liquid and was floating on the metal wall was now spreading around like water ripples.
And that metal wall also changed,
The originally flat and smooth metal wall began to dent inward piece by piece from the point where the card touched it, and then shrank toward the surrounding area.
Soon, a doorway appeared in front of the alien invader.
It feels like a hole is drilled in the wall when playing a pixel game.
There are sharp edges and corners around the hole, which are small metal blocks.
The alien invader was guarding the entrance of the cave and extending a tentacle pointing inside.
It's letting those other alien invaders in first.
The other alien invaders also moved and entered the doorway one by one.
Xu Xin immediately pointed to the doorway.
"Let's go in together." He mouthed silently.
Both women nodded.
The alien invaders suddenly became very orderly, even lining up and entering the doorway one after another.
The little guy also stuck out his head and looked at the row of alien invaders.
It was easy for Xu Xin and the other two to sneak in.
The doorway was not small, at least three meters wide, and the queue of alien invaders could not block the door.
They avoided the alien invaders, turned sideways, and moved in step by step while holding their breath at the team of alien invaders less than a meter away from them.
Just as Xu Xin, who was in the front, entered the doorway, an accident happened.
Suddenly, the wall with flowing red ripples suddenly rioted, and then a green light flashed!
At the same time, an unpleasant alarm sounded!
“————!————!————!”
The exclusive green alarm color flashed in all directions, turning the originally red surroundings completely green!
Xu Xin grabbed Li Wenxi and Xu Ying behind him and quickly passed through the doorway!
Then, they saw that the doorway behind them, which was originally open, quickly closed, and countless metal blocks filled the gaps. In less than two seconds, the wall became a smooth wall again.
Xu Xin and the other two knew that this alarm...
It was these three who triggered it!
Be careful!
(End of this chapter)
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