[Rethorical questions are met with a soft smile of confirmation rather than a nod. The question is met with a bit of a frown though, mostly because he doesn't really know her and so far he hasn't really shared his research with anyone. But this is... safe. It concerns all of them, unlike some of the other stacks of notes he left back in the apartment.]
I don't really know as much as I'd like either... we entered through a building in Sector 3. It looked like a recharge station for the maintanence robots, and as far as I know it's usually impossible to get in there, even for people with special powers.
There's a big cargo elevator in there, going deep into the seabed. It was difficult to gauge how much time it took to reach bottom, and for most of the journey down there was nothing but rock but I'd say it's a good distance. We didn't spend much time down there but around here... [Pointing to one of the scribbled squares on the map] ...there's a control station. A way into the mainframe.
I'm sure someone else could explain that part better to you than I can, but I can say this much: both Sentience and Acumen - our previous warden - are capable of changing reality. Shifting between dimensions or... altering our physical condition.