The Disappearance of Lady Frances Carfax

This ingeniously plotted whodunit from detective fiction master Arthur Conan Doyle will leave you hanging on the edge of your seat. In a departure from form, Conan Doyle puts Dr. Watson into the driver's seat in this story, sending Holmes' eminently patient sidekick to Lausanne, Switzerland to investigate the strange disappearance of an aristocratic old maid.