The Cost of Survival by J. L. Stowers

SPSFC 2022

Survival isn’t about who’s right; it’s about who’s left. Earth spirals into chaos.
World war ravages every border.
The human race teeters on the edge of extinction. Survival hinges on the success of one colony located in a decimated valley. Walt Marshall, government contractor, is no stranger to loss after the death of his wife and son.
Now he’ll honor them by doing whatever it takes to ensure the survival of humankind. Walt gets more than he bargained for when he uncovers a puzzling clue left behind by a mysterious woman. Destined to unveil the truth, he embarks down a dangerous path of espionage and treason. He quickly learns the dark truth about the past, and the future in this daring science fiction novel.