May Sinclair (1863-1946) was a pen name for Mary Amelia St. Clair, an English suffragist known for her extensive publications. These written works ranged from novels and short stories to poetry and political criticisms. Her limited work in supernatural fiction has been highly celebrated for its delicacy and precision, making her a must-read author.

Mike Ashley is an author, anthologist, and editor with a specialism for seeking out rare strange stories from the periodicals and magazines of the nineteenth and twentieth centuries. He is an expert in the fields of weird fiction and classic mystery stories, and a leading authority on the history and development of the occult detection tale.