Chess and his crew Hazel, Swedish, and Bea may have escaped the slums, but they cannot escape the Fog that threatens to swallow the entire mountaintop city of Port Oro. Only one thing can stop the fog: an ancient machine known as the Compass. Only one person can find it: Chess. With the help of his crew, Chess faces dangerous encounters, brutal battles, and deadly driftsharks to unearth the hidden instrument. It s a race against time to save this high-altitude sanctuary.

Sequel to: The Fog diver.