The Great Detective 99 cents on Amazon.
Professor Challenger and Conan Doyle become caught in a whirlwind case that The Great Detective, Sherlock Holmes and his partner Doctor Watson, is pursuing.
A demonic killer, who is the embodiment of evil, is on the loose in London killing people.
It must be stopped.
But how do you stop a murderer who isn’t human?
The Great Detective 99 cents on Amazon.
