Following the blind spot of the surveillance, Lin Yi moved to the staircase.
Outside, it was secured with a stainless-steel code lock, and without a key, it was impossible to open without using a cutting machine.
Lin Yi took out a key, carefully inserted it into the keyhole, tried moving it around a bit, and the lock clicked open.
He pulled the door open to a gap of more than half a meter, and Lin Yi slipped inside sideways.
Reaching the platform between the first floor and the basement, there was an electronic door separating the two sides.
Lin Yi took out an access card and placed it on the chip reader.
The electronic door opened with a click, and after Lin Yi entered, it closed automatically.
Walking down the half level of stairs, the entire underground lab unfolded before Lin Yi's eyes.
The scene in front of him was somewhat shocking, like stepping into a movie world, adding a touch of sci-fi and an unreal feeling.
