Noted adventure and travel writer Miller, researching a book on Cervantes, visits Madrid for “El Dia del LIbro,” where the “Lectura Continuada” takes place. Tom joins in this marathon reading of the thousand-page “Don Quixote,” the world’s best-loved and most translated novel. The winner of the Cervantes Prize — Mexican poet José Emilio Pacheco — kicks things off, followed by more than a thousand readers, including politicos, actors, and cultural bureaucrats, each reading a paragraph or two from the magnum opus.