Penny Dreadfuls: Proto-Hardboiled, Detective, Adventure and Thriller Dreadfuls

Adventure Dreadfuls

• Adventures of Buffalo Bill from Boyhood to Manhood, by Colonel Prentiss Ingraham
• California Joe, the Mysterious Plainsman, by Colonel Prentiss Ingraham
• Jesse James, the Outlaw, by W. B. Lawson
• Deadwood Dick's Doom; or, Calamity Jane's Last Adventure

Crime and Detective Dreadfuls
The Mysteries of London

• The Mysteries of London - George William MacArthur Reynolds

The Mysteries of Paris

• The Mysteries of Paris, Volume 1 of 6 - Sue, Eugène, 1804-1857
• The Mysteries of Paris, Volume 2 of 6 - Sue, Eugène, 1804-1857
• The Mysteries of Paris, Volume 3 of 6 - Sue, Eugène, 1804-1857
• The Mysteries of Paris, Volume 4 of 6 - Sue, Eugène, 1804-1857
• The Mysteries of Paris, Volume 5 of 6 - Sue, Eugène, 1804-1857
• The Mysteries of Paris, Volume 6 of 6 - Sue, Eugène, 1804-1857

Old Sleuth

• Old Sleuth,  Cad Metti, the Female Detective Strategist: or, Dudie Dunne Again in the Field 
• Old Sleuth, A Desperate Chance: or, The Wizard Tramp's Revelation (1897) 
• Old Sleuth, The "Dock Rats" of New York: or, The Smuggler Band's Last Stand
• Old Sleuth, Oscar the Detective: or, Dudie Dunne, the Exquisite Detective
• Old Sleuth, A Successful Shadow: or, A Detective's Successful Quest (1897)
• Old Sleuth, Two Wonderful Detectives: or, Jack and Gil's Marvelous Skill (c1898) 
• Old Sleuth, Wonder Jack, the Detective: or, The Witch of Manhattan (New York: J. S. Ogilvie Pub. Co., c1894) 

Thriller Dreadfuls

• Fred Fearnot's Revenge, or Defeating a Congressman, by Hal Standish
• Fred Fearnot's Day, or The Great Reunion at Avon, by Hal Standish
• Nick Carter, Detective: The Solution of a Remarkable Case, by a celebrated author
• The Great Spy System, or, Nick Carter's Promise to the President, by a celebrated author