Books about Adventure stories (sorted alphabetically)
- Romany Rye George Borrow
- Romany Rye George Borrow
- Roode Pimpernel (Dutch) Baroness Emmuska Orczy Orczy
- Round the World in Eighty Days Jules Verne
- Round the World in Seven Days Herbert Strang
- Rover Boys at School; Or, The Cadets of Putnam Hall Edward Stratemeyer
- Rover Boys in the Jungle; Or, Stirring Adventures in Africa Edward Stratemeyer
- Rover Boys on Sunset Trail; or, The old miner's mysterious message Edward Stratemeyer
- Roving Commission; Or, Through the Black Insurrection at Hayti G. A. Henty
- royal smuggler : or, The adventures of two boys in the Indian Archipelago William Dalton
- Roy Blakeley: Lost, Strayed or Stolen Percy Keese Fitzhugh
- Roy Blakeley's roundabout hike Percy Keese Fitzhugh
- Ruby at School Mrs. George A. Paull
- Rupert of Hentzau: From The Memoirs of Fritz Von Tarlenheim Anthony Hope
- Rushton Boys at Treasure Cove; Or, The Missing Chest of Gold Spencer Davenport
- Saaren orvon seikkailut (Finnish) Frederick Marryat
- Saboteur of Space Robert Abernathy
- Sack of Monte Carlo: An Adventure of To-day Walter Frith
- Sæfarinn (Ferðin kring um hnöttin neðansjávar) (Icelandic) Jules Verne
- Sailor in Spite of Himself Harry Castlemon
- Sailor Jack, the Trader Harry Castlemon
- Salaperäinen saari: Seikkailukertomus (Finnish) Jules Verne
- Salattu maa: Suurmetsästäjä Allan Quatermainin seikkailuja Keski-Afrikassa (Finnish) H. Rider Haggard
- Sam Steele's Adventures in Panama L. Frank Baum
- Sam Steele's Adventures on Land and Sea L. Frank Baum