Engrossing and heavily researched, 11/22/63 sees King dabble in historical fiction to great effect. The novel is about Jake Epping, a high school teacher who discovers a portal in a local diner that can transport him back in time to 1958. Jake tries to prevent the assassination of John F. Kennedy, as well as circumvent other tragic events. Like most time travellers, though, Jake soon has to contend with the "butterfly effect" and the havoc his actions wreak on the future. 11/22/63's conception of time travel and maneuvering of alternate histories are compelling features that make the novel stand out from the rest of King's work.