Doyle, Arthur Conan: The Adventure of the Cardboard Box. V1. 9 Jan 2011
 

Sir Arthur Ignatius Conan Doyle, DL (22 May 1859 – 7 July 1930[1]) was a Scottish[2] physician and writer, most noted for his stories about the detective Sherlock Holmes, which are generally considered a major innovation in the field of crime fiction, and for the adventures of Professor Challenger. He was a prolific writer whose other works include science fiction stories, historical novels, plays and romances, poetry, and non-fiction.

Quite a stir is caused in Croydon when a 50-year-old spinster, Miss Susan Cushing, receives a parcel in the post which turns out to contain two severed human ears packed in coarse salt.