...I and Wes Schneider took over the big conference room at Paizo and began to work out what Pathfinder Adventure Path was going to do to follow up its first official campaign for the Pathfinder Roleplaying game. We knew we wanted to do a sandbox-based Adventure Path (in part because we were excited by the challenge, and in part because there was a lot of call and request for something like that from Pathfinder gamers at large), and by the end of an afternoon-suddenly-become-evening-without-us-noticing, we’d sketched out Kingmaker, the idea for building a kingdom, the grid-based settlement-construction concept, and the basic ideas for the region in which the campaign would take place. I went on to craft the outline for the Adventure Path and started hiring authors, while Wes focused on writing a detailed gazetteer for the Stolen Lands that would appear in the Guide to the River Kingdoms alongside the launch of Kingmaker itself.