Boulder bath
Lex followed Mateo through the massive laboratory as it woke up from its ancient slumber. There seemed to be a noticeable lag in response, as certain doors opened after half a second, and the lights flickered on just a moment after they had already entered a room.
Lex did not mind, for it was acceptable for such things to be slowed down after such a long period of time. His only concern was what other issues might present when he began to actually use some of these facilities - such as a room designed to support the bonding of a planet!
Just as he was reconsidering his course of action, they reached the aforementioned room. It was… surprisingly mundane. It was square and barely 1000 square feet large (92 square meters). The walls were padded, but besides that the room lacked any other distinguishing feature.