Because regardless of whether your Whydunit detective is an amateur who’s never solved a mystery or a private eye who’s “seen it all,” in the end the reader is your true gumshoe. It’s the reader you have to wow with each shocking turn of the cards—clues and reveals set to detonate like bombs at just the right moment, stopping the story in its tracks and sending the mystery in a new direction. And it’s the reader who must be forever changed by what you ultimately reveal about human nature.

