THE NATIONAL DEBT In which the Saint disguises himself as a dusty professor in order to save a lovely damsel from the clutches of a sinister conspiracy. THE MAN WHO COULD NOT DIE In which the Saint's well known sensitivity to the adventurous possibilities of any situation lead him to pursue the current fortunes of the extraordinary Miles Hallin, a seemingly unimpeachable man about whom it has been said that if Miles Hallin could have walked a tight rope he would have walked a tight rope stretched across the crater of Vesuvius as a kind of appetizer before breakfast