Dead Letter Office? Mail Crimes? Blind Reading Book? Campers discover espionage, geography, and the many forms of transportation behind the inner workings of our postal system. Visits to the Postal and American History museums inspire campers to uncover a week of challenges, games, and exploration. Campers design their own routes, mailboxes, and stamps. They even get to help Owney the Dog solve their own "dead letter" mystery.