Laxmi Bachanalaya
Legally available public-domain books and openly licensed reading materials.
Roy J. Snell
Allan Pinkerton
William Augustine Leahy
Nicholas Carter, Burke Jenkins, and E. K. Nostwell
Lawrence L. Lynch
Burford Delannoy
E. Phillips Oppenheim
Herbert Beeman
Grace Brooks Hill
Max Marcin
Francis Worcester Doughty
Emma Speed Sampson
William Le Queux
Carolyn Wells
Edgar Wallace
C. N. Williamson and A. M. Williamson
Arthur B. Reeve
Mary Roberts Rinehart
Nicholas Carter
Auguste Groner
Janet D. Wheeler
Van Tassel Sutphen
Arthur Stringer
Guy Boothby
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.