maddies grandchildren are increasingly confronted with enemies who their parents have never met.the veil, which separates the various dimensions, becomes thinner. this is how they come into contact with the underworld and their demons. but also with nymphs and other water creatures. the girl who riddock rescued from the water turns out to be a powerful uisge, a water nymph. raven resigns his position as head of the donia-macgregor clan, after he and maddie are mortally wounded. it is time for the next generation to take over. a generation that knows better where the new danger comes from.