The Lost World - Conan Doyle novel - was created in 1912.
Conan the Destroyer - novel - was created in 1984.
I do not believe there is a missing diary of Sir Arthur Conan Doyle. There is a novel called 'The Sherlockian' by Graham Moore, which makes this claim, but it is fiction. You might also be thinking of a 'lost' novel by Sir Arthur Conan Doyle called 'The Narrative of John Smith,' which was published in 2011. The novel was written by Conan Doyle in 1883 when he was a struggling physician/author trying to make a name for himself. Also, published in September 2012 is the diary kept by Conan Doyle on his journey in the arctic as a ship's doctor. Please see the links below.
Sir Arthur Conan Doyle
In the novel by Sir Arthur Conan Doyle, "A study in Scarlet".
'A Study In Scarlet' is the first novel about Sherlock Holmes written by Sir Arthur Conan Doyle.
Sir Arthur Conan Doyle created the famous fictional detective Sherlock Holmes, known for his brilliant deductive reasoning and keen observation skills. Holmes first appeared in the novel "A Study in Scarlet" in 1887.
No. He wrote 'A Study in Scarlet', the first Holmes novel. 'The Scarlet Letter' was an American novel about a woman branded on her forehead.
Sir Arthur Conan Doyle is the author of this novel.
'The Adventure of Shoscombe Old Place' was published in The Strand Magazine' in April 1927, and then it was included in 'The Casebook of Sherlock Holmes' later that same year. It was the last Sherlock Holmes story written by Sir Arthur Conan Doyle.
"The Keys to the Kingdom " is a very popular title. -It's a Sci-Fi adventure by Garth Nix, a romance by Alison Armstrong, and a spy novel by Bob Graham. - but nothing by A Conan Doyle. ( don't even get me started on "Keys OF the Kingdom " -)
I am not quite sure how to answer this question, but Sir Arthur Conan Doyle wrote short stories, novellas, novels, and poetry. He wrote in the categories: mystery, historical fiction, adventure, non-fiction, drama, poetry, and verse among others. I hope that helps.
Sherlock Holmes is a character in the novels written by Arthur Conan Doyle. Scarlett O'Hara is a character in Margaret Mitchell's novel Gone With the Wind.