Oran lives on Little Drum, where music is everything. Every islander has a birth instrument and a life song – and the ancestors, called ghasts, linger to hear the music. But when the Duchess arrives from the mainland bringing orders of silence, she threatens the ghasts' existence, the very soul of the community. When Oran hears of a mythical instrument with the power to manipulate hearts, she brings her ghast best friend, Alick, on a quest to find it, play it, and change the Duchess's mind...