Heartstone (Paperback) (ISBN-13: 9780473553562)

Beyond the hidden city, evil is brewing. It is waiting - for them.

Ash doesn't know what terrifies him most, losing his mind to the Song, or losing his best friend, Kep. While Ash struggles to unlock ancient memories and lost secrets, Kep follows her own destiny - to become a League warrior and join the fight against the evil Melk. But Kep's desire for vengeance could be her undoing. Caught in a world full of mystery, secrets and betrayal, the friends are once more plunged into danger.

The eagerly-awaited sequel in an award-winning series. Bronze Medal, Wishing Shelf Awards, 2019.