Lois Duncan writes a young adult mystery called Down a Dark Hall, published by Signet in September 1975. This is about Kit Gordy, who have been sent to Blackwood, a girl's school, along with three friends, to develop their "psychic talents."
Allan Kass illustrates our schoolgirl running down a hallway of a mansion. We see her plaid skirt and blazer jacket which were typical school uniforms of the 1970's. I love her face and her long strawberry blonde hair flowing behind her. While we don't see anything sinister, it's assumed by her expression and her actions. The darkness of the room and the open window with the purple curtain waving suggest an eerie feeling to the hallway.
