The world didn't end. It synchronized. When a routine emergency broadcast test sends a mysterious signal across the country, people begin freezing mid-motion-heads turning west as if listening to something no one else can hear. Minutes later, the biting begins. Paramedic Jonah Vale should have died the night the outbreak started. Instead, the bite changes him. The infected hesitate around him. They move past him like water around stone. They don't recognize him as prey. Or as human. As cities collapse and terrifying new mutations emerge, survivor Mara Caldwell struggles to keep a small group alive in a world where night belongs to the dead and danger lurks in every shadow. But the infected are not acting randomly. They are responding. Across the country, strange subsonic signals are summoning the infected in massive migrations, turning entire cities into hunting grounds overnight. And Jonah is beginning to hear the signal. As fear spreads faster than infection and humans begin hunting anyone who might be "changed," a terrifying truth emerges: The outbreak wasn't an accident. It was a test. And Jonah may be the first successful result.
