Alone on the frontier, twelve-year-old Lauren and her brave little brothers, Aiden (9) and Ethan (5), must guard the Tower of Light that will guide both parents home. With little else but the aid of a trio of blessed pets, three holy weapons, and their growing faith, Lauren, Aiden, and Ethan find it is up to them to stop the agents of The Dark One from putting out the Light and dooming the heathlands to Darkness.