I suppose that could work as a plan. If you get someone to come to each and every city, chances are they'll find the various shops and landmarks while they're there. And they'll pass those on, which would-

[There's the sound of several angry screeches and a lightning strike in the background, and she turns away.]

Oh dear, that's a lot of Aerodactyls. I seem to have forgotten that I'm in the middle of a battle here. A one-sided one, but still.