Today's OneWord: Chalkboard

I could feel her fingernails on my back. Racing against each ridge, attempting to probe my spine as if she were trying to extract something from my bones. The sensation set my teeth on the brink, made the stuff in my veins turn into a personal arctic ocean. I felt shriveled up and petrified like an old tree. But the worst was the noise they made. Like my body was, indeed, an outdated, makeshift chalkboard.