Five years ago Adeluna helped the magic-rich island of Grace Loray overthrow its oppressor, Agrid, a country ruled by religion. When an Argridian delegate vanishes during peace talks with Grace Loray's new Council, Argrid demands brutal justice-- and Lu suspects something dangerous is at work. Devereux is a pirate, scavenging the island's magic plants and selling them on the black market. Accused of the diplomat's abduction, Vex becomes a target....

Held captive with the king's son in an endlessly shifting prison, Lu contemplates the violence of her military past to prevent the takeover of her island home, while a tormented Vex throws himself into the rebellion against Argrid forces. As a child, Lu freed Grace Loray from King Elazar of Argrid. Now Elazar is holding her and his own son, Ben, captive in an endlessly shifting prison, forcing them to make a weapon that will guarantee Elazar's success...

"David Elliott explores how Joan of Arc changed the course of history and remains a figure of fascination centuries after her extraordinary life and death in a fiery, evocative novel-in-verse."--Provided by publisher.