MarkhamSeason 11959 · 24 episodesEpisodes1A Princely Sum2Crash in the Desert3Paris Interlude4The Seance Story5The Human Factor6The Seamark7Three Steps to Murder8The Glass Diamond9Vendetta in Venice10The Last Bullet11Forty-Two on a Rope12The Duelists13The Counterfeit Stamp14We Are All Suspect15The Bay of the Dead16The Other Side of the Wall17Deadline Date18Girl on the Rocks19Grave and Present Danger20Double Negative23Mutation27Strange Visitor28The Altar58The Bad SpellAmy Rae, a famous singer, is receiving threatening notes, and her husband Tony goes to Roy Markham to find out who's sending them. Is his wife in danger?
