Bone-Eroding Vaccine: The Underground Human Farm

When the “savior vaccine” becomes a genetic mutagen that tears humanity apart, billions transform into bloodthirsty Nightborn, dragging civilization into an abyss of endless darkness. The few survivors huddle inside steel fortresses, using ultraviolet barriers to protect the last sparks of reason. They have no idea that the mastermind behind the catastrophe is emerging from an underground city deep beneath the mantle, making its way to the surface.