Moony, Wormtail, Padfoot, and Prongs,” sighed George, patting the heading of the map. “We owe them so much.” “Noble men, working tirelessly to help a new generation of lawbreakers,” said Fred solemnly. “Right,” said George briskly. “Don’t forget to wipe it after you’ve used it —” “— or anyone can read it,” Fred said warningly.[Prisoner of Azkaban, Chapter 10]