There is darkness inside us all. It whispers suggestions into the hearts of men, and those with feeble hearts will listen.

An orphaned girl is thrust into the centre of a terrifying adventure when she moves to a remote castle. Arasyll must remain hidden at all costs, since the building is home to a boys' school and girls are forbidden to study there. Who can she trust? Certainly not the alluring and mysterious Sebastien, who seems to hold the keys to the castle’s dark secrets.