Never before had a shrewd criminal leader so successfully defied the Law — and the Spider’s sure vengeance! A powerful Eastern murder syndicate, employing two deadly weapons, held America for ransom, spreading pain and terror and red destruction... Never had the Spider’s struggle against the Underworld seemed so futile, for the name of Richard Wentworth was disgraced, his fortune was forfeit, and his beloved had betrayed him into the hands of the police — and certain death!

Slaves of the Murder Syndicate is torn from the pages of the February, 1936 issue of The Spider magazine.