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