Even the best intentions can bring down a mountain … Sent away for the summer, the Ivyweather sisters were promised a family vacation by their wealthy, indifferent parents. Two at-odds opposites - Constance an anxious society sweetheart and Ivory an adventure-struck rebel - the sisters aren't sure what to make of the dangerously decayed town of Quixx and its creeping fog that never seems to lift. When Ivory disappears after a spat with her...