Mystery of the Sycamore By: Carolyn Wells

Nan Sherwood at Palm Beach Or Strange Adventures Among The Orange Groves By: Annie Roe Carr

Nancy Brandon's Mystery By: Lilian C. Garis

Nelly Channell By: Sarah Doudney

Network of Crime By: Nicholas Carter

Never-Fail Blake By: Arthur Stringer

On Secret Service By: William Nelson Taft

On the Edge of the Arctic or, An Aeroplane in Snowland By: H. L. (Harry Lincoln) Sayler

Orange-Yellow Diamond By: Joseph Smith Fletcher

Oscar the Detective Or, Dudie Dunne, The Exquisite Detective By: Harlan Page Halsey

Other People's Money By: Emile Gaboriau

Outside the Prison By: Richard Harding Davis

Owen Clancy's Happy Trail or, The Motor Wizard in California By: Burt L. Standish

Owen Clancy's Run Of Luck By: Burt L. Standish

Panther Eye By: Roy J. (Roy Judson) Snell

Passenger from Calais By: Arthur Griffiths

Patty's Friends By: Carolyn Wells

Peter Ruff and the Double Four By: Edward Phillips Oppenheim

Peter the Brazen A Mystery Story of Modern China By: George F. (George Frank) Worts

Plague of Pythons By: Frederik Pohl

Poisoned Pen By: Arthur B. Reeve

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

Rayner-Slade Amalgamation By: Joseph Smith Fletcher

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

Sacred Herb By: Fergus Hume

Scarhaven Keep By: Joseph Smith Fletcher

Sealed Message By: Fergus Hume

Secret Tomb By: Maurice Leblanc

Seven Keys to Baldpate By: Earl Derr Biggers

Sight Unseen By: Mary Roberts Rinehart

Silver Bullet By: Fergus Hume

Smugglers' Reef By: Harold L. Goodwin

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

Stark Munro Letters By: Sir Arthur Conan Doyle

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

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

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 Wolf Pack By: Daniel Carter Beard

The Borough Treasurer By: Joseph Smith Fletcher

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

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

The Count's Millions By: Emile Gaboriau

The Crimson Blind By: Fred M. White

The Crooked House By: Brandon Fleming

The Crystal Stopper By: Maurice Leblanc

The Danvers Jewels, and Sir Charles Danvers By: Mary Cholmondeley

The Darrow Enigma By: Melvin Linwood Severy

The Destroyer A Tale of International Intrigue By: Burton Egbert Stevenson

The Diamond Coterie By: Lawrence L. Lynch

The Diamond Cross Mystery By: Chester K. Steele

The Disappearance of Lady Frances Carfax By: Sir Arthur Conan Doyle

The Fifth Ace By: Isabel Ostrander

The Fortune Hunter By: David Graham Phillips

The Frontier By: Maurice Leblanc

The Garret and the Garden Or, Low Life High Up By: Robert Michael Ballantyne

The Gates of Chance By: Van Tassel Sutphen

The Ghost Breaker By: Charles Goddard and Paul Dicky

The Golden Face A Great 'Crook' Romance By: William Le Queux

The Golden Scorpion By: Sax Rohmer

The Golf Course Mystery By: Chester K. Steele

The Governors By: Edward Phillips Oppenheim

The Gray Madam 1899 By: Anna Katharine Green

The Green Eyes of Bâst By: Sax Rohmer

The Green Mummy By: Fergus Hume

The Haunted Hotel, A Mystery of Modern Venice By: Wilkie Collins

The House in the Mist By: Anna Katharine Green

The Insidious Dr. Fu-Manchu By: Sax Rohmer

The Ivory Snuff Box By: Frederic Arnold Kummer