A magnificent English detective in the entourage of a mysterious and sinister boarding school. The story of twin sisters who have to figure out the secrets and mysteries of their educational institution.

My sister and I are again going to Rookwood School. This time with joy. After all, the stepmother does not want to see us in her house, the half-brothers are mischievous, and the father does not notice anything. The new academic year brought with it not only long-awaited meetings with friends, but also new secrets and dangers. A mysterious newcomer named Ebony has managed to surprise the seemingly ready for anything inhabitants of Rookwood School! There are rumors that she is a witch ... And indeed, frightening events occur and the lives of our friends are in danger. Scarlet and I decided to figure out who Ebony really was before the worst happened...