Mapped Out: The search for Snookums! Easter Egg - Authors Friends in Map

Look at the map that comes with the book. Friends of the author have roads in their name, Thomson road, Norcie road, etc. How do I know this? The authors kid goes to my school and showed it to me. Also notice how the setting is in "Spittsburgh". The author lives in Pittsburgh. Its a very intersting thing. the book also has many eggs but Ill leave those to you to find.