The secret of the School of Prochlow

A crime has occurred in a closed school for girls! During the Sunday dinner, the director and her brother and her brother fell dead during the Sunday dinner. Seven pupils understand that Mrs. Plakett and Mr. Goddding were poisoned, but who?! And if the neighbors find out about this, then they will probably close the school, and the girls will be sent home. Meanwhile, visitors arrive at school very inappropriately (for example, in love with the director of the admiral!) Therefore, the girls decided to pretend that nothing happened and hide the crime. In addition, it turned out that the financial affairs of the director are very bad. So what funds did the school contained?! And who is still a killer? Each of the schoolgirls is talented in their own way, joining efforts, they take up the investigation.
For secondary school age