Book Two in the Mystic Island trilogy sees Max and Ruth Foster returning to the island they were shipwrecked on, the year before. This time, they plan the trip carefully and a good friend offers them passage on a luxury schooner with an experienced crew. However, their daughter and her husband decide to join them and, because of a family emergency, they decide to take their son's two children as well. Add a research chemist to the mix, bent on disproving...