disguise

Curse of the Crimson Horde (SAX,39) – Secret Agent X — man of a thousand faces and conqueror of kings of crime — found himself parried by the ageless weapons and black magic of the Far East.

The Spectral Strangler (SAX,2) – 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.

Legion of the Living Dead (SAX,18) – From nowhere hurtled that black death car. And from nowhere came its grisly occupants. They were not of the earth, for their human flesh was immune to bullets. They were not of the grave, for they manned the wheel and a blasting machine gun.

Curse of the Mandarin’s Fan (SAX,36) – Chang was the lord of the Chinese underworld and Lim Toy was the goddess of the opium dens. Secret Agent X had no choice but to descend into the catacombs of the dragon.

The Golden Ghoul (SAX,16) – Secret Agent “X’s” far-flung, crime-crushing organization brought him whisperings of a fiend who meted out a death worse than death— a monster who called himself the Ghoul.

Octopus Of Crime (SAX,6) – A monstrous octopus of evil gained slow power over the underworld. His identity as mysterious as that of Secret Agent “X” himself, this apostle of wickedness led the horror hordes of the nation into a bloody carnival of crime

The Complete Doctor Satan by Paul Ernst is a series of eight novelettes in two volumes. Written in 1935 and 1936 for Weird Tales magazine, the stories pit the sinister and evil Doctor Satan, master of both scientific and occult knowledge against Ascott Keane, equally a master of the scientific and the occult.

Doctor Satan Vol. 2 by Paul Ernst
The world’s weirdest criminal and strangest detective come face to face in these final four tales of the fiendish and sinister Doctor Satan.

Doctor Satan Vol. 1 by Paul Ernst
The eight Doctor Satan stories by Paul Ernst appeared in Weird Tales in 1935 and 1936. Doctor Satan, an enormously wealthy man, tired of all the thrills that money can buy, turned to crime and became a cold-blooded monster. He employs both scientific and occult knowledge to commit fiendish and sinister acts of evil, and spectacularly gruesome murders.

The Curse of Capistrano by Johnston McCulley (1883-1958) is more famously known as The Mark of Zorro. Serialized in All-Story Weekly in 1919, The Curse of Capistrano is the classic tale of the masked avenger Zorro, full of sword fights, horse chases and forbidden romance. Any number of masked and caped heroes can trace their inspirations back to Zorro, but this is the original novel.