A radio serial in thirteen parts by Frederick Bradnum freely dramatised from Louise de la Valliere and The Man in the Iron Mask by Alexandre Dumas with Patrick Troughton, Anne Cullen and Victor Lucas
D'Artagnan has recognised the mysterious prisoner in the Bastille as the twin brother of King Louis XIV, and in order to discover more, plans to become imprisoned himself in the guise of a law breaking provincial councillor.
(Sunday's broadcast)