Blyth, Teague, and Abbon, three brothers of the Durotriges tribe in southern Britain, discover a strange old man, living alone in the forest, who warns them of a coming storm.
Soon afterwards, their father returns from travelling in distant lands. But then, terrible events force them to flee from their village; the only home they have ever known.
The old man teaches them some magic, before they embark on a journey across the sea to Gaul, guided by the warrior mage Gwenn.
Gwenn brings them to train with the mysterious Deru-Weidi, but will their magic be enough when they come face to face with the mighty city of Rome?
Set in a historically accurate backdrop of iron age Britain, Gaul, and the Roman Republic; "Children of the Wise Oak" is a historical fantasy featuring magical realism, Celtic culture and religion, the occasional dragon, and more.