The dark waters of the past hide many secrets. One of them led to the difficult relationship between Sergei and Vita’s parents. Not only the colossal age difference prevented the lovers from being together, another, more serious reason separated them for many years from the people closest to them. Betrayal, treachery, rejected love - the heroes had to endure all this. This is what the fourth book in the “Water Circles” series is about, which stands apart from the three previous novels by Evgenia Perova.