A female voice heard in the Prologue musing on what somebody looked like on the inside.
Once awake in Chapter 1, the characters saw that she looked like a human woman (until a long tongue came out of her mouth and her head turned all the way around on her neck), very thin, in a blood-soaked white doctor’s coat, giggling to herself. Her face turned into Grip’s face while he grappled her. Armed with rusted pruning shears she tortured a man to death before the party killed her. In death, she transformed into liquid gray sludge, melting into a shape on the floor like a distended, eight-foot-tall, pale, vaguely humanoid thing with two pupil-less eyeballs. A notorious toe-eater.
First Reference: Prologue
Other Notable References: Chapter 1