C581 It's Impossible to Guard Against!

"I think I should think about how to reach the thirty-eighth level first." Xia Yu frowned.

This was because the surveillance and security was very strict.

In fact, every level of the staircase and elevator was filled with all kinds of experimental bases.

If they were to be discovered, just releasing these half-finished monsters would be enough to make them suffer.

"Well, let's go back