Laxmi Bachanalaya
Legally available public-domain books and openly licensed reading materials.
E. Phillips Oppenheim
Old Sleuth
Victor Bridges
Baron Edward Bulwer Lytton Lytton
Kurt Matull and Theo von Blankensee
Fortuné Du Boisgobey
Nicholas Carter
Mark Twain
Kurt Matull, Felix Hageman, and Theo von Blankensee
Will Levinrew
T. W. Speight
W. Crispin Sheppard
W. B. M. Ferguson
William Le Queux
Henry Curties
Olaf Homén, Henning Söderhjelm, and Emil Hasselblatt
Arthur Conan Doyle
George R. Sims
These books are free to read. Each is in the public domain in the United States; check your own country's rules before you copy or share one.