Doc Savage: The Black Spot is #76 in The Fantastic Adventures of Doc Savage Series. All the guests were dressed as gangsters but their millionaire host was dead in the library with a black spot over his heart. Then the black spot struck again. And again. The Man of Bronze and his courageous crew leap into action against Jingles Sporado and his mob but they soon suspect a peril greater than any they have ever confronted. Lawrence Donovan, used the pen name Kenneth Robeson, to write his Doc Savage adventures. Other Fantastic Adventures of Doc Savage available by the same author are: Doc Savage: Murder Melody Doc Savage: Cold Death Doc Savage: Mad Eyes Doc Savage: The Man Who Smiled No More Doc savage: Land of Long Ju Ju Doc savage: Haunted Ocean Doc Savage: He Could Stop the World Doc Savage: Murder Mirage Doc Savage: The Black Spot