"The ninth floor underground? Wow, it's so big here, but why make it so mysterious? Looking at this place like an underground palace, I'm afraid there are nearly ten meters in height. The interior decoration is very delicate. There are smooth mirrored walls everywhere, mainly white and light blue. A passage about four meters wide extends forward. At the end of the passage, there should be nearly fifty meters. On both sides of the passage, there should be one laboratory. Roughly counted, there are about fifteen or sixteen, and the cold son is somewhat puzzled. Asked.

Professor Hoffard laughed as he took him forward. "Big B is one of the...