[He gave him a hard stare for a moment,then seemed to calm, letting out a breath and making himself relax. No point getting up in arms, right?]

That depends. I know a lot of the map details, especially since the most recent... things. Elaborations on the basic maps, the can and cannots of how this place works on a physical scale, flight paths that work best from certain cities in Johto, what creatures are affected by in and out of battle.

There's more stuff too, but it's not written.