When fourteen year old Sally Carter shares her secret about When fourteen year old Sally Carter decides to share the secret she has discovered on Slipper Point with her new friend Doris Craig, she couldn't possibly imagine where the solution to this intriguing mystery will lead them! Augusta Huiell Seaman is the author of over 40 historical fiction and mystery novels for older children most of which are currently out of print. The Slipper Point Mystery was originally published in 1919. (summary by J. M. Smallheer)