A plot to plunge Earth into a dark age, timeless immortals, a self-aware child of one, indecipherable scratching filling a dozen legal pads, a president transported to alternate futures, free electricity from Heaven, and a showdown on Arctic ice. Is there room for one more alternate future where JFK lives? The author imagines his real-life friend, who died in Vietnam, as the reluctant hero called upon to prevent the event that would shatter the nation...