How do you defeat a magician who can shape mountains?

Abbey and her friends travel across the sea in search of Syd's brother, a sailor captured by a warlord years ago. To find him, they'll need the help of their greatest enemy, the Storm Caller Dahlia.

When they arrive, they discover a land ruled by a new form of magic: the Way of Stone.

The Stone Shapers agree to help Abbey and her friends track down the missing man, but only if Abbey helps them defeat a band of rebels first.

What Abbey doesn't know is that the leader of the rebels is the very man they came to rescue.