Eric Riordan was once a wealthy man leading a comfortable, easy life. Until one day Gabriel, his oldest friend, Marine Corps veteran, and a former mercenary, told him how the world was going to end. He did his best to prepare. He thought he was ready for anything. He was wrong. As the dead rise up to devour the living, one man finds himself struggling to survive in the ruins of a shattered world. Alone, isolated, and facing starvation, his only chance is to flee to the Appalachians and join forces with Gabriel.

The Superpox-99 virus has wiped out nearly the entire human race. Governments have collapsed. Cities have become graveyards filled with unspeakable horror. People have resorted to scavenging from the dead, or taking from the living. The entire industrialized world has become a wasteland of abandoned cars, decaying bodies, and feral animals. To stay alive, U.S. Deputy Marshal Mason Raines must forage for food, water, and gasoline while outgunning those who seek to take advantage of the apocalyptic anarchy. Together with his giant Irish wolfhound, Bowie, he aligns with survivors of the town of Boone in a life and death struggle against a gang of violent criminals. With each deadly encounter, Mason is force to accept his place as one of the nation's few remaining lawmen. In a world now populated by escaped convicts, paranoid mutants, and government hit squads, his only hope to save the townspeople is to enforce his own brand of frontier justice.

The Ruhar hit us on Columbus Day. There we were, innocently drifting along the cosmos on our little blue marble, like the Native Americans in 1492. Over the horizon came ships of a technologically advanced, aggressive culture, and BAM! There went the good old days, when humans got killed only by each other. So, Columbus Day. It fits. When the morning sky twinkled again, this time with Kristang starships jumping in to hammer the Ruhar, we thought we were saved.

Tucked away in a high-tech Tactical Operations Center, inside an isolated safehouse in the Horn of Africa, sits Agency analyst Zack Altringham. He is Kenyan-born, Princeton-educated, badly burnt-out - and condemned by his language and cultural skills to a lifetime of fighting America's shadow counter-terror wars.

The worst of nature and the worst of science will bring the human race to the brink of extinction. Master Sergeant Reed Beckham has led his Delta Force team, code named Ghost, through every kind of hell imaginable and never lost a man. When a top secret medical corps research facility goes dark, Team Ghost is called in to face their deadliest enemy yet - a variant strain of Ebola that turns men into monsters.