They were supposed to save their people…
Elaina, The Child of Light, is always viewed as the protector of the people. Her gift lights the way and her responsibility to the people is always heavy on her shoulders. 
Brannaugh, The Child of Darkness, is always feared for her gift full of shadows and night even and though she protects the people the same as her sister, she is always viewed as evil. 
When Ionad’s enemies threaten the village these two sisters bonded by blood and spirit are forced to fight but will they be able to balance their gifts or will they be consumed by the raw power of the light and the darkness?