Lisa Morton is a screenwriter, anthologist, and the author of Calling the Spirits: A History of Seances and Ghosts: A Haunted History. She is a six-time winner of the Bram Stoker Award, a recipient of the Black Quill Award, and winner of the Grand Prize from the Halloween Book Festival. A lifelong Californian, she lives in North Hills, California, and can be found online at www.lisamorton.com.

Leslie S. Klinger is one of the world's foremost authorities on Sherlock Holmes. He is the editor of the three-volume The New Annotated Sherlock Holmes. The first two volumes, The Complete Short Stories, won the Edgar for Best Critical/Biographical work. He is also the editor of the hugely successful The New Annotated H. P. Lovecraft. Klinger is a member of the Baker Street Irregulars and lives in Malibu, California.