The Ravagers Series by Alex Albrinck

Centuries of calamities took humanity to the brink of extinction. Now, with the aid of a time capsule, the human race is once more populating the Earth, resurrecting technologies lost centuries earlier. With those innovations, though, come civilization's need to fight for control. Just as humanity seemed poised for a return to stability, they'll learn that some among them seek a return to extinction. They need only find the right time, and the right person, to put their plans in motion.

Activate---A technological scourge ravages the land, razing buildings, roads, and living creatures without remorse, transmuting the dust of the destroyed into more of the destructive force, spreading like a swarm upon those powerless to stand in its way.Five people will do all they can in a desperate attempt to survive what the few have unleashed upon the many. In the process, they'll learn more about themselves and those they've loved and worked with than they'd ever known--or wanted to know... moreActivate---A technological scourge ravages the land, razing buildings, roads, and living creatures without remorse, transmuting the dust of the destroyed into more of the destructive force, spreading like a swarm upon those powerless to stand in its way.Five people will do all they can in a desperate attempt to survive what the few have unleashed upon the many. In the process, they'll learn more about themselves and those they've loved and worked with than they'd ever known--or wanted to know.And they'll learn that there's far more to their thirty-sixth century world--and the blotted-out sections of history--than they ever imagined. less

In the distant future, humanity staggers against wave after wave of population decimating catastrophes, and hope fades as the extinction point draws near. They find a time capsule carrying with it the knowledge of the past, technology that allows them to rise above their meager existence. Within a few generations, they've built walled cities to protect them from predators they'd learned to fear, bustling commerce, and telecommunications capabilities that connect people and businesses... moreIn the distant future, humanity staggers against wave after wave of population decimating catastrophes, and hope fades as the extinction point draws near. They find a time capsule carrying with it the knowledge of the past, technology that allows them to rise above their meager existence. Within a few generations, they've built walled cities to protect them from predators they'd learned to fear, bustling commerce, and telecommunications capabilities that connect people and businesses. They've also restored the means to make war. Two great factions control East and West, each preparing to fight while hoping war never comes. Humanity wouldn't dare fight a great war so soon after nearing extinction. But there are some who would prefer those astonishingly low population counts. And they'll unleash a weapon unlike any other in human history to achieve those ends. Five people with varying levels of knowledge and responsibility of those plans live their last normal day, unaware that they'll be fighting for their lives against a weapon which cannot be stopped. But somehow, they'll all need to figure out how to survive the unleashing of... the Ravagers. less