Secrets and Mysteries. Ghosts of the Paris Opera

When Matilda, a young ballerina of the Paris theater, learns that her mother is suspected of murder, she realizes that something is amiss. The girl decides to conduct her own investigation and prove her innocence. But where to start? How to become a detective if she has never solved a mystery before? Matilda understands that she will have to make an effort to uncover the truth. Join her in the investigation.