There were twelve of them—twelve enormous diamonds of extraordinary purity and clarity, named after the signs of the Zodiac. But gradually, the unique collection’s exhibits were lost, scattered across the world: billionaires and the largest collectors possessed diamonds from the legendary “Zodiac” collection. No one expected that the “Zodiac” stone—an invaluable “Aquarius”—would be found in one of the capital’s medical clinics. During an operation, doctors discovered a container sewn into the patient’s body, holding a huge diamond. And the girl, Olya, was brought to private clinic owned by Vika Salieri and her husband Mark. Now they need to figure out how the diamond ended up with the girl and for whom she was transporting it in such a strange way…