Cover art: Petur Antonsson Here is a look behind the scenes at how I drew the maps for Amanda Foody's first two Wilderlore books (for Simon & Schuster): The Accidental Apprentice and The Weeping Tide. Stay tuned for interviews with author Amanda Foody (now up!), art director (Karyn Lee) and editor (Kate Prosswimmer)! First, as usual, is to read…