Totally set into flashback mode by Tuesday's redraw of the Castellan's Keep, I put pen to paper the next day trying to redraw a map from memory that I had used for a D&D Rules Cyclopedia campaign in University (the year the Cyclopedia had been released). In the end I could only remember a few concrete details about the keep, but the rest flowed nicely and the end result is one I'm happy with and looking forward to using in play again.