A time travel book back to 1961.
The Fitton Chronicles
Inside Hastings Mountain, under attack in Colorado, Ray Meinkewitz attempts to send Jim Cahill and his fiancé two years back in time. They must prevent the present day nuclear annihilation of American cities by aligned terrorist groups. But they are brought back to 1961. The intelligentsia of that period grill and browbeat Cahill. Cahill and a younger Meinkewitz are dropped with a rogue sergeant into Cuba, in the midst of the Bay of Pigs operation. Cahill confronts a Cuban mercenary, the architect of the future nuclear holocaust. He must kill the Cuban and change time forever.
Consider time travel a risky venture. In July of 1986, Jim Cahill turned thirty-two and had twice traveled back in time. They first sent him to 1976. Retrograde’s elastic effect of moving back in time returned him safely to Hastings Mountain in four hours and garnered him the distinction as the first man to successfully survive a trip through time. Eleven men were killed in the previous attempts, but he had triumphed. Cahill thought himself lucky and tried again, this time venturing back to 1979. As were his orders on the first trip, he did nothing, touched nothing, and merely let the video capture a midwestern cornfield.
As a boy in Kansas he dreamed about traveling back in time, but never knew how Einstein's theories could help him construct the slick time travel machines he saw in the movies. As a man he figured flying high-speed aircraft would be the closest experience to journeying back through time, but even his test pilot training could not prepare him for the perils of time travel.
Assignment to the Red Shift experiments demanded much toil and energy with neither reward nor free time. Cahill cornered Meinkewitz after the last time trip and secured a week away with Kate. She would want to see more of him now that she had finished her doctorate work.
The cooler, fresh mountain air flared through the open window as Cahill maneuvered his five speed Explorer up a long asphalt stretch somewhere in the High Sierra. It was only two hundred miles to San Francisco and Golden Gate Park, where he would meet Kate in four hours. Over a month had passed since he had stared into her earthy green eyes and touched long her dark hair. He replayed their making love back in New York and could almost feel her tight body.