Doctor help him find Jules's house. With Susan held in the prison as a hostage, the Doctor takes him to Jules. Once there, Lemaitre reveals that he is in fact the English spy James Stirling. In response, Ian relays Webster's message and Stirling realises that the secret assignation at an inn on the Calais Road is where the conspiracy will take place. Jules, Ian and Barbara head to the inn and overhear Barras conspire with a young general, Napoleon Bonaparte (Tony Wall), in the indictment and overthrow of Robespierre. The following day, Stirling arranges Susan's release from prison. The coup against Robespierre has begun. Stirling heads for Calais and England, while Jules and Jean lie low as they measure the future. Meanwhile, the Doctor and his companions return to the TARDIS. Production Conception and writing In late 1963, the eighth serial of Doctor Who was set to be titled Doctor Who and the Red Fort, a seven-part story set during the Indian Rebellion of 1857 and written by Terry Nation. However, by January 1964, little work had been done on the serial, and Nation was busy writing The Keys of Marinus. Script editor David Whitaker was later assigned to the episode, possibly about the Spanish Armada, with Gerald Blake to direct; however, this was soon scrapped, and Whitaker asked Dennis Spooner, a friend of Nation, to write an episode instead. Although Spooner was originally interested in writing a science fiction story, Whitaker was seeking a historical serial after John Lucarotti's Marco Polo and The Aztecs. Spooner was given four possible subjects, eventually deciding to focus on the French Revolution, a setting first suggested by actor William Russell. Spooner was officially commissioned by Whitaker on 2 April 1964, following Spooner's submission of a 23-page breakdown for the serial. Hungarian director Henric Hirsch was chosen to direct the serial after producer Verity Lambert saw his work on First Night, while Stanley Myers composed the serial's incidental music. Myers created 28 minutes of music for the serial, taking cues from French music such as the national anthem "La Marseillaise". The sets for The Reign of Terror were designed by Roderick Laing, who was brought in to ease the workload on regular designers Barry Newbery and Raymond Cusick, who had worked on every serial to date. Characters and casting Actor and lyricist James Cairncross portrayed Citizen Lemaitre, having been recommended to Hirsch by production