First, the unthinkable: a security breach at a secret U.S. government facility unleashes the monstrous product of a chilling military experiment. Then, the unspeakable: a night of chaos and carnage gives way to sunrise on a nation, and ultimately a world, forever altered. All that remains for the stunned survivors is the long fight ahead and a future ruled by fear--of darkness, of death, of a fate far worse.

As civilization swiftly crumbles into a primal landscape of predators and prey, two people flee in search of sanctuary. FBI agent Brad Wolgast is a good man haunted by what he's done in the line of duty. Six-year-old orphan Amy Harper Bellafonte is a refugee from the doomed scientific project that has triggered apocalypse. Wolgast is determined to protect her from the horror set loose...

First, the unthinkable: a security breach at a secret U.S. government facility unleashes the monstrous product of a chilling military experiment. Then, the unspeakable: a night of chaos and carnage gives way to sunrise on a nation, and ultimately a world, forever altered. All that remains for the stunned survivors is the long fight ahead and a future ruled by fear--of darkness, of death, of a fate far worse.

As civilization swiftly crumbles into a primal landscape of predators and prey, two people flee in search of sanctuary. FBI agent Brad Wolgast is a good man haunted by what he's done in the line of duty. Six-year-old orphan Amy Harper Bellafonte is a refugee from the doomed scientific project that has triggered apocalypse. Wolgast is determined to protect her from the horror set loose...