Half of the earth's population has been wiped out. Impossible to predict or stop, the Gamma Ray Burst tore through the Earth like a bullet, its radiation wave killing hundreds of millions, and the after effects ensuring the deaths of billions more.

The world’s food supply grows aggressively, occupying every inch of earth, no matter how inhospitable. World hunger is averted. Humanity flourishes. RC-714 is digested, absorbed…and passed on. The Change affects small fast-breeding mammals first. They multiply with the same aggressive speed as the ExoGen plants, but an insatiable hunger drives them to violence. A war between species breaks out. When RC-714 reaches humanity, along with every other large creature on the planet, civilization implodes.

Pre-med student Coral is on vacation in Idaho when something terrible happens. The black cloud is followed by a wildfire and searing heat that lasts for days. She survives deep in a cave but emerges days later to find the world transformed, with blackened trees, an ash-filled sky, and no living creatures stirring - except for her. So begins her desperate journey to find water and food and other survivors...and the answer to the mystery of what happened.

When an EMP catastrophe shuts down power worldwide, Melanie Pearson must embark on a grueling trek to reunite with her family. But before she can cross the savage wastelands, she’ll need to help her boss find his own son first. And Melanie quickly realizes she may have made a deal with the devil himself….

A massive solar flare. A devastating global blackout. Amid the pandemonium, a ship loaded with fuel faces the ultimate threat: mutiny. The desperate captain will do anything to maintain order while he races to get his precious cargo to the safety of homeport, but time is running out. On land, in cities without power, violence rules the streets as society crumbles into chaos.