Deadly Beautiful

Asteria is a small town on the East Coast, where seventeen-year-old girl Ariadne Black moves.
Ariadne has lost her family, and now she has to live with her mother's two sisters – Norin and Mary-Lynette Montfort. Seemingly kind and caring, they are trapped within the four walls of their old mansion Montfort-l'Ambroise.
Soon Ari notices that the residents of Asteria do not like her aunts at all. Moreover, they fear them. What is the reason for this? Why?
And most importantly – should Ari be afraid of herself.