I began reading Sherlock Holmes as a teenager and was so intrigued by the clever detective and his deductions that I moved onto other well-known Whodunit authors such as Agatha Christie and P.D James, and decided that this would be my genre as I began my apprenticeship as an author. While working through Blake Snyder’s Save the Cat, I decided to try my hand at adapting one of Sir Arthur Conan Doyle’s stories—The Valley of Fear—into a screenplay. It was a fascinating exercise, and gave me a lot of insight into story construction and characterisation.Who was Joseph Bell?