The title of this Dumas novel, the last adventure of the 3 Musketeers, refers to a mysterious Bastille prisoner
[DOC] [TLE] Man in the Iron Mask - Wikipedia [PAR] The Man in the Iron Mask is the name given to an unidentified prisoner who was 
arrested in 1669 or 1670 and subsequently held in a number of French prisons, 
including the Bastille and the Fortress of ...