The Minotaur (Unabridged‪)‬

Kerstin Kvist didn't know what to expect when she took up a job with the Cosway family at their odd, almost grand, house. The family turned out to be even odder than the house: living at home with the widowed Mrs. Cosway were her four daughters and a son who haunted the house. Then, just as Kerstin was getting some inkling of what was going on, a stranger sets the family on a path to self-destruction...