The title of this Dumas novel, the last adventure of the 3 Musketeers, refers to a mysterious Bastille prisoner
[DOC] [TLE] Narrow Results By - Strand Books [PAR] Dumas's last major historical novel is a tale of romantic love, jealousy and 
obsession, ... A swashbuckling adventure by the author of The Three Musketeers 
.... Who is the mysterious prisoner in the Bastille?