He looked around and saw that no one was guarding the top floor.
This seemed even more abnormal!
Ack frowned. He took out a pair of glasses from his shirt and saw red lines all around him.
There was no way he could pass through it.
No wonder no one there were no guards!
Moreover, there were no surveillance cameras.
Clearly, apart from not wanting outsiders to take away the items inside, it was even guarded against insiders!
It seemed like there was something wrong with it.
Looking at the dense infrared lines in front of him, Ack frowned.
After scanning the entire area, his gaze finally landed on the ventilation tube above his head.
Through it, he found the place.
The black box was placed inside the glass, and the ultraviolet rays around it were even more concentrated than outside.
The glass cover had to be opened from the bottom, or else it would be impossible to get the box.
