English language
Published 2021 by Baker Street Press.

Arthur Conan Doyle: Sign of the Four (2021, Baker Street Press)
English language
Published 2021 by Baker Street Press.
The Sign of the Four (1890), also called The Sign of Four, is the second novel featuring Sherlock Holmes written by Sir Arthur Conan Doyle. Doyle wrote four novels and 56 short stories featuring the fictional detective.