Hawthorne: Sybil

Searching through famous books... Hmm, maybe it's a character from a less popular book or perhaps a modern novel? Or maybe it's a character from a TV show or movie? I don't recall any major characters named Sybil Hawthorne. Alternatively, maybe the user made a typo. Could it be "Sybil" instead of "Sybil"? There's a famous case called the Sybil case, referring to Sybil Dorsett, a patient who was diagnosed with dissociative identity disorder. That's a real case studied by Dr. Flournoy. But the last name here is Hawthorne, not Dorsett.