The megacity of Rum had always been a place of gravestone and story, but beneath the visible thoroughfares, bends, and towering minarets lay commodity further fugitive symbols. For centuries, trippers, autocrats, preachers, and crafters had filled Rum with dispatches sculpted into its walls, painted on its polls, hidden in mosaics, and rumored in songs. To understand Rum completely, one had to look beyond its physical form and discover the retired canons that made it a megacity of meaning.