About the book: year / Lydia - an orphan and one of the best pupils of Smolny - has enough of her own mysteries in life: who she is, who her parents were, and why her daughter French subjects, taken to Russia when she was a child? A trip to an ancient and mysterious estate, owned by the father of her best friend, was seen by Lidia only as a place where she could practice solving mental problems. After all, Lydia, due to her character, cannot leave problems unsolved - and there are a lot of them in the estate.