Postmaster's Daughter By: Louis Tracy

Queen of Hearts By: Wilkie Collins

R. Holmes and Co. By: John Kendrick Bangs

Radio Boys Loyalty Or, Bill Brown Listens In By: S. F. (Samuel Francis) Aaron

Ravensdene Court By: Joseph Smith Fletcher

Rayner-Slade Amalgamation By: Joseph Smith Fletcher

Red Diamonds By: Justin McCarthy

Red Window By: Fergus Hume

Remarkable Rogues: The Careers of Some Notable Criminals of Europe and America By: Charles Kingston

Ruth Fielding At College or The Missing Examination Papers By: Alice B. Emerson

Ruth Fielding at Snow Camp Or, Lost in the Backwoods By: Alice B. Emerson

Ruth Fielding Down East Or, The Hermit of Beach Plum Point By: Alice B. Emerson

Ruth Fielding in the Great Northwest Or, The Indian Girl Star of the Movies By: Alice B. Emerson

Ruth Fielding of the Red Mill By: Alice B. Emerson

Ruth Fielding on the St. Lawrence The Queer Old Man of the Thousand Islands By: Alice B. Emerson

Scarhaven Keep By: Joseph Smith Fletcher

Secret Mark By: Roy J. Snell

Seven Keys to Baldpate By: Earl Derr Biggers

Sight Unseen By: Mary Roberts Rinehart

Smugglers' Reef By: Harold L. Goodwin

Staircase at the Heart's Delight By: Anna Katharine Green

Staircase at the Heart's Delight By: Anna Katharine Green

Stark Munro Letters By: Sir Arthur Conan Doyle

Stolen Idols By: Edward Phillips Oppenheim

Stories of Mystery Little Classics, Volume 8 (of 18) By: Rossiter Johnson

Stowmarket Mystery, or, a Legacy of Hate By: Louis Tracy

Study In Scarlet (Version 6) By: Sir Arthur Conan Doyle

Talleyrand Maxim By: Joseph Smith Fletcher

Tangled Trails By: William MacLeod Raine

Ted Marsh on an Important Mission By: Elmer Sherwood

The Adventure of the Bruce-Partington Plans By: Sir Arthur Conan Doyle

The Adventure of the Cardboard Box By: Sir Arthur Conan Doyle

The Adventure of the Devil's Foot By: Sir Arthur Conan Doyle

The Adventure of the Dying Detective By: Sir Arthur Conan Doyle

The Adventure of the Red Circle By: Sir Arthur Conan Doyle

The Adventure of Wisteria Lodge By: Sir Arthur Conan Doyle

The After House By: Mary Roberts Rinehart

The Amateur By: Richard Harding Davis

The Betrayal By: Edward Phillips Oppenheim

The Bittermeads Mystery By: E. R. (Ernest Robertson) Punshon

The Black Box By: Edward Phillips Oppenheim

The Black Wolf Pack By: Daniel Carter Beard

The Borough Treasurer By: Joseph Smith Fletcher

The Box with Broken Seals By: Edward Phillips Oppenheim

The Boy from the Ranch Or Roy Bradner's City Experiences By: Frank V. Webster

The Boy Ranchers in Death Valley or Diamond X and the Poison Mystery By: Willard F. Baker

The Boy Scouts of Lenox Or The Hike Over Big Bear Mountain By: Frank V. Webster

The Bradys and the Girl Smuggler or, Working for the Custom House By: Francis Worcester Doughty

The Bradys Beyond Their Depth The Great Swamp Mystery By: Francis Worcester Doughty

The Burglar's Fate And The Detectives By: Allan Pinkerton

The Cabman's Story The Mysteries of a London 'Growler' By: Sir Arthur Conan Doyle

The Camera Fiend By: Ernest William Hornung

The Campfire Girls of Roselawn Or, a Strange Message from the Air By: Margaret Penrose

The Case of the Lamp That Went Out By: Auguste Groner

The Castle Of The Shadows By: Alice Muriel Williamson

The Champdoce Mystery By: Emile Gaboriau

The Chink in the Armour By: Marie Belloc Lowndes

The Clique of Gold By: Emile Gaboriau

The Coast of Chance By: Esther Chamberlain

The Confessions of Arsene Lupin By: Maurice Leblanc