Classicly

The Mystery of 31 New Inn is a detective story written by R. Austin Freeman, Richard Austin Freeman was a British writer of detective stories, mostly featuring the medico-legal forensic investigator Dr. Thorndyke. He is also the author of  The Red Thumb Mark, and The Eye of Osiris, etc.

Jeffrey Blackmore suspiciously made two wills, both deceptively alike, but still, in a cunning way, completely different. John Thorndyke, equally cunning and smart, smells something fishy. With stylish cool and logic, he leads the story up to its marvelous and fully credible climax.