FLASH MOB: Edgar Allen Poe meets the "Thriller" The Concept: Be a part of a Baltimore FLASH MOB as we thrill visitors at the Baltimore Book Festival, and kick off a years worth of Poe events! The Plan: Arrive at the Book Festival by 11:45 and casually enjoy some books. Once you hear Thriller run to the center of the festival (the Washington Monument) and join other flash-mobbers in the Thriller da