Terrifying.
--Scott Sigler Riveting.
--David Brin Rock-hard realistic.
--James Rollins The nanotech was intended to save lives.
Instead, it killed five billion people, devouring all warm-blooded lifeforms except on the highest mountain peaks.
The safe line is 10,000 feet.
Below, there is only death.
Above, there is famine and war.
Humankind's final hope rests with a scientist aboard the International Space Station.
and with one man in California who gambles everything on a desp.