The Curious Case of Miss Amelia Vernet is Sherlock Holmes pastiche. Miss Vernet is Holmes' 16 year old cousin, no less! Like all Conan Doyle admirers, I was both drawn to the story and a little hesitant. Some Sherlock Holmes pastiche is better left unread. This is definitely not the case here! I loved this story.
There is another short story set in 13th century England, The Serpent's Tale.