This is a story from the Four Short Stories collection.
In these stories, Conan Doyle draws the listener in to experience drama, suspense and, ultimately, the shock of surprise. Here is a unique combination of a famous analytical intellect telling spine-tingling tales against a background of turn-of-the-century England. Nothing is quite as it seems. What is the secret of "Lot No. 249"? What lies in wait for an aviator in the stratosphere? And what lies inside "The Sealed Room"?