Seven sisters. The sister of pearl

The journey undertaken by Sisi, one of the six deplays" adoptive sisters, in an attempt to find their true roots, is a new unpredictable adventure, another detail in the mystery of seven sisters.
Sisi is a closed girl who, in addition, externally noticeably differs from the rest of the sisters. Who is she? What kind of unusual facial features are she? What blood flows in her veins? And what kind of subconscious craving for art?
Having studied for several months at the London Academy of Arts, Sisi abandones her studies, realizing that she would not become her own in the world of European bohemia. So, it"s time to go in search of a new world. The one to whom she belongs by the right of birth.
Sisi, like her sisters, will follow the hints of his beloved foster father Pa Salt. But so far puzzles of the Salt have not yet started anyone