R. Austin Freeman 
Mr. Pottermack’s Oversight 

In this novel, the sympathetic, engaging and enterprising Mr. Pottermack commits the perfect crime, only to discover that a perfect crime is the last thing in the world he wants. Enter the legendary Dr John Thorndyke, physician and lawyer, the dean of scientific detection, who seems to know far too much about what Mr. Pottermack did on a night when there was nobody around to see him.