Most readers love a whodunnit story. A trail of clues to follow and reasoning to understand. These types of stories fall into two major categories: mysteries and thrillers. In both types, something dramatic has occurred—a murder or a bomb threat, for example—and we (the reader) want to understand who did it and why. Often, these two genres are thrown together into the same category—one where something needs to be figured out—but they are really two different animals. This pos