An attempt to head off this smaller tragedy provides a test case for Jake, to see if he can alter the past for the better. A night school student of his, school janitor Harry Dunning, recently turned in an autobiographical essay describing how on Halloween night 1958 Dunning’s father took a hammer to Dunning’s mother and other family members with, in some cases, fatal results. Jake, with only an alcoholic ex-wife by way of family, is inclined to honor his dying friend’s request to save JFK, but he also has a personal reason to venture into the past. “You can go back, and you can stop” the assassination, he tells Jake.

After Jake’s return, a suddenly older and sick-looking Al confesses that he spent several years in this bygone world, in an effort to prevent President Kennedy’s assassination, but because he contracted lung cancer, he was unable to fulfill his history-changing mission.

Al persuades Jake to take a brief, exploratory trip through the rabbit hole into 1958 Lisbon Falls. Each time you go through the rabbit hole, according to Al, only two minutes have elapsed when you return to 2011, no matter how long your stay furthermore, history resets itself each time you return to that morning 53 years ago. Al Templeton, the proprietor of Al’s Diner in Lisbon Falls, Maine, has discovered a temporal “rabbit hole” in the diner’s storage room that leads to a point in the past-11:58 a.m. High school English teacher Jake Epping has his work cut out for him in King’s entertaining SF romantic thriller.

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