At eighteen, Fiona Belli left home to attend a university. While visiting her parents during a break, she was involved in a serious traffic accident. When she came to, she found herself locked up in a mysterious castle, with no recollection of how she arrived there.
The servents eventually explain that she had inherited the castle, but Fiona had not been aware of any relatives who lived in such a place. Frightened and confused, she searches for an escape, but is thwarted at every turn by the inhabitants of the castle.
Fiona has never had much talent for sports or othter athletic endeavors. She is very quiet and seems shy, but her spirit is strong; she is not introverted or weak-willed. There is something inside her that draws people in and wins them over. Despite her reticence she is mentally aglie and quick-witted. She resists overreacting or letting her emotions get the best of her.
While exploring the castle she meets a dog named Hewie, and they quickly develop a tight bond.