As the lives of the three sisters were seriously in danger, a witchdoctor from the Katoomba tribe took it upon himself to turn the three sisters into stone to protect them from any harm. While he had intended to reverse the spell when the battle was over, the witchdoctor himself was killed. As only he could reverse the spell to return the ladies to their former beauty, the sisters remain in their magnificent rock formation as a reminder of this battle for generations to come.