«Dark Reality» by Robert Moore Williams

Book Summary: future mankind reaches back to save the human race.
Sci Fi Categories: Apocalyptic Dystopian Earth, Time Travel, Teleporting, 
Book Description: The last rays of the sun washed down over the planet, over the low rounded hills and the trees that grew on them, through the shallow valleys where the grass grew rank and luxurious. The last songs of the birds came undisturbed through the dusk. A deer snorted. From somewhere came the bark of another animal, a bark that ended in a howl, long-drawn and mournful.
Lee Garth twisted in his chair. Wearily he laid the pencil down. The equations wouldn't work right. They kept trying to run off into impossible combinations. There was an erratic but persistent gadfly of thought buzzing in his mind, a vague shadowy movement in his brain. Like a ghost from shadow-land it twisted through his brain, twisting through the dark convolutions where his memory lay testing the open synapses, seeking a place where a short circuit would result in action.
Authors Bio: Robert Moore Williams. The prolific author Robert Moore Williams published more than 150 novels and short stories under his given name as well as a variety of pseudonyms including John S. Browning, H.H. Harmon, Robert Moore, Russell Storm and E.K. Jarvis.
Williams was born in Farmington, Missouri and earned a journalism degree from the University of Missouri, Columbia. He had a full-time writing career from 1937 through 1972 and cut his teeth on such publications as Amazing Stories, Fantastic Adventures, Astounding, Thrilling Wonder and Startling.
Narrators Rating: ★★★★☆