12-year-old Ada is a laundress of little consequence but the new castle commander Brian de Berclay has his evil eye on her. Perhaps she shouldn't have secretly fed the young prisoner in the tower.But when the King of England crosses the border with an army of over 3000 strong, Ada, her friend Godfrey and all at Caerlaverock suddenly find themselves under attack, with only 60 men for protection.Soon, rocks and flaming arrows rain from the sky over Castle Caerlaverock - and Ada has a dangerous choice to make.