The Ninth Guest

Jacob Lane is a ten-year-old girl who's spent her life unaware of her magical heritage. After being sent to Darkbrook, a school of magic, supernatural mysteries seem to spring to life all around her and her new friends.

When Jacob's friend Ophelia's family decides to open up their castle for guests, amateur paranormal sleuth Jacob Lane is invited to join in on the fun. "Spend the night in a vampire's castle and live to tell the tale!" is supposed to be a fundraiser to help Ophelia's family ...