


In this romp, Jake Epping, a high-school English teacher (vintage King, that detail), slowly comes to see the opportunity to alter the fate of a friend who, in one reality, is hale and hearty but in another dying of cancer, no thanks to a lifetime of puffing unfiltered cigarettes. Didn’t Star Trek tell us not to do that? Yes, but no matter: Up in his beloved Maine, which he celebrates eloquently here (“For the first time since I’d topped that rise on Route 7 and saw Dery hulking on the west bank of the Kenduskeag, I was happy”), King follows his own rules. Well, not exactly: The author is really turning in a sturdy, customarily massive exercise in time travel that just happens to involve the possibility of altering history. King ( Under the Dome, 2009, etc.) adds counterfactual historian to his list of occupations.
