Dead girls of hysteria hall

Delia is a17 year old who has an aunt that died and left the house for Delia.When delia and her family go to see the house and fix it but when the went to the house she realized her out did not live in an ordinary home or mansion she lived in and asylum for troubled girls and women.When Delia gets inside to explore and try and find something that would explain why her aunt committed suicide.When Delia is walking around she feels like she is being watched but when she looks around there is no one there so she starts to get a little creeped out,when Delia is taking her stuff out she sees this black fog type of smoke  and she gets overwhelmed and in a mater of seconds she is....... Read the book to find out what happens to Delia and what is wrong with the house.