Seren is used to being alone, because she is an orphan. But the girl always dreamed of finding a home and family. Luckily for her, a friend of her deceased father decided to take Seren in for upbringing. The girl was sure that a new happy life awaited her at the Place-et-Fran estate! But imagine her disappointment when she found out that the owners left this house a year ago and now she had to live here alone. What happened in this house? Why don’t the servants say where Tomos, the son of her guardians, is? And who lives in the forbidden room in the attic? There are many secrets awaiting Seren. But she doesn’t yet know that a wind-up toy will help her open them - a crow, which was handed to her on the way to the estate by a mysterious stranger...