The Spectral Strangler (1934) – Silent, horrible as the crushing coils of a serpent were those unseen fingers that blotted out men’s lives. A criminal of satanic proportions had risen —the “Black Master,” whose victims fell with livid, hideous faces and protruding tongues that seemed a ghastly mockery of the fate they had suffered. Along this terrible murder trail Secret Agent “X” gambled with the Dice of Death. Secret Agent “X” is a master of disguise and his true identity is never revealed. He adopts several different identities in each story. What we do know about “X” is that he served in the War (World War I) in intelligence and was wounded from which he got an X shaped scar. He is a dedicated crime-fighter working undercover for the U.S. government, although this is unknown to local police who consider him an outlaw. His true role is known only to newspaper reporter Betty Dale and his mysterious Washington controller, K-9. Chapter I – Murder in the Night Chapter II – A Daring Disguise Chapter III – Murder Club Chapter IV – A Cipher Solved Chapter V – Greenford’s Double Chapter VI – The House of Mystery Chapter VII – The Tigress! Chapter VIII – Leaden Threat Chapter IX – The Black Master’s Threat Chapter X – A Brilliant Gathering Chapter XI – The Dead Are Silent Chapter XII – The Ninth Victim Chapter XIII – Guns of Death Chapter XIV – To the Death Chapter XV – Taken for a Ride Chapter XVI – The Black Master’s Orders Chapter XVII – Flowers of Death Chapter XVIII – The Man Hunt Begins Chapter XIX – The Spies’ Nest Chapter XX – The Spy’s Bargain Chapter XXI – The Chamber of Death Chapter XXII – The Man Behind the Mask