Books about Adventure stories (sorted alphabetically)
- Circus Boys on the Plains; Or, The Young Advance Agents Ahead of the Show Edgar B. P. Darlington
- Citadel of Death Carl Selwyn
- Citadel of the Green Death Robert Emmett McDowell
- Citadel of the Star Lords Edmond Hamilton
- Città dell'Oro : racconto (Italian) Emilio Salgari
- Cleg Kelly, Arab of the City: His Progress and Adventures S. R. Crockett
- Coast of Adventure Harold Bindloss
- codice di Perelà (Italian) Aldo Palazzeschi
- Collision Orbit Clyde Beck
- Colonel of the Red Huzzars John Reed Scott
- Colossus of Chaos Nelson S. Bond
- comet-drivers Edmond Hamilton
- Coming of the Gods Chester Whitehorn
- Coming of the King Joseph Hocking
- Compete or Die! Mark Reinsberg
- comte de Monte-Cristo, Tome I (French) Alexandre Dumas and Auguste Maquet
- comte de Monte-Cristo, Tome II (French) Alexandre Dumas and Auguste Maquet
- comte de Monte-Cristo, Tome III (French) Alexandre Dumas and Auguste Maquet
- comte de Monte-Cristo, Tome IV (French) Alexandre Dumas and Auguste Maquet
- comte de Moret (French) Alexandre Dumas
- Conjurer of Venus Conan T. Troy
- Conspiracy on Callisto Frederik Pohl
- Conte di Monte-Cristo (Italian) Alexandre Dumas and Auguste Maquet
- Contraband: A Tale of Modern Smugglers Erle Spencer
- Copper Coleson's Ghost Edward P. Hendrick