When a diplomat disappears and war threatens to break out, it is up to a Lu, a soldier, Vex, a pirate, and Benat, a prince to help determine the fate of their countries. 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. Benat is a heretic-- and the crown prince of Argrid. Facing conspiracies, the three will have to decide who they really are... and what they are willing to become for peace. -- adapted from jacket

Series information from goodreads.com.