In a dystopian kingdom where the classes are separated by the languages they speak, Charlaina "Charlie" Hart has a secret gift that is revealed when she meets a mysterious young man named Max.

When the negotiation of a peace agreement with the Queendom of Astonia goes awry, Charlie receives a brutal message that threatens Ludania, and it seems her only option is to sacrifice herself in exchange for Ludanian freedom. But is she walking into a trap set by Sabara, the evil former queen of Ludania?