Tom is determined to save Prexxor Chasm from the menace known as The Blight, an apparently unstoppable monstrosity that threatens to devour the Chasm and everything in it -- including Smildon, the creature who saved Tom's life.
Peyton gets a call from CodeMaster Hotekk -- inviting him to become the CodeMaster's apprentice. But first he must complete a dangerous ScanQuest that will take him deep into the territory of the M'Arrillians.
The Four Tribes hold a grand race to celebrate their victory over the M'Arrillians and their newly-forged unity... but will their ancient rivalries win the day?