Castle Glower's towers have transported Princess Celie, her siblings and her pet griffin, Rufus, to an unknown land – a world of wild griffins, shadowy forests and castle ruins. As they set out on a dangerous adventure to discover their whereabouts, they find an entire lost people, divided by the wishes of two wizards in a centuries-old quarrel over their beloved home – Castle Glower! Why has the castle sent Celie and her siblings here, and will they ever get back home?