The Red Herring

What fun would a murder mystery be if the murderer was plain to see up front? Mystery relies on feeding us options and opportunities for guessing right—and guessing way wrong. A red herring is the literary technique of boldly played misdirection—the origin of the idiom is that, if you wanted to get hounds off your scent, you could use the skin of a red herring to draw their attention, thus drawing them away from their actual target.

CHUCK WENDIG