Books about Detective and mystery stories (sorted alphabetically)
- Clouds of witness Dorothy L. Sayers
- cloven foot : A novel M. E. Braddon
- club of masks Allen Upward
- Clue Carolyn Wells
- clue of the new pin Edgar Wallace
- Clue of the Twisted Candle Edgar Wallace
- Clue of the Twisted Candle Edgar Wallace
- Coin of Edward VII: A Detective Story Fergus Hume
- Colonel Thorndyke's Secret G. A. Henty
- Come Back Carolyn Wells
- Confession Mary Roberts Rinehart
- Constance Dunlap Arthur B. Reeve
- Continental Classics, Volume XVIII., Mystery Tales Various
- Contraband Clarence Budington Kelland
- copper box J. S. Fletcher
- corde au cou (French) Emile Gaboriau
- Corner House Fred M. White
- Cottage on the Fells H. De Vere Stacpoole
- Count's Millions Emile Gaboriau
- Crevice William J. Burns and Isabel Ostrander
- Crime and Punishment Fyodor Dostoyevsky
- Crime and the Criminal Richard Marsh
- Crime Club W. Holt-White
- crime d'Orcival (French) Emile Gaboriau
- crimen y el castigo (Spanish) Fyodor Dostoyevsky