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 Mark By: Roy J. Snell

Secret Tomb By: Maurice Leblanc

Selected Uncle Abner Mysteries By: Melville Davisson Post

Seven Keys to Baldpate By: Earl Derr Biggers

Short Mystery and Suspense Collection 010 By: Various

Short Mystery and Suspense Collection 011 By: Various

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

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

Stratagems and Conspiracies to Defraud Life Insurance Companies: An Authentic Record of Remarkable Cases By: Charles C. Bombaugh

String of Pearls (dramatic reading) By: Unknown

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

Tales of Mystery and Horror By: Maurice Level

Talleyrand Maxim By: Joseph Smith Fletcher

Tangled Trails By: William MacLeod Raine

Technique of the Mystery Story By: Carolyn Wells

Ted Marsh on an Important Mission By: Elmer Sherwood

That Affair at Portstead Manor By: Gladys Edson Locke

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

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