“Hidden” (post 2) by Fern Michaels: A second character hears a voice in her head, and a third character makes a multiple personality joke
“But then a little voice in her head reminded her that if they didn’t rectify the predicament they were in, she might be shopping at these stores for the rest of her life. That is, if they didn’t go to prison” (1, p. 202).
“How are you going to explain your presence in a showroom after hours? You had a blackout and don’t know how you got here?” (1, p. 297).
Comment: Memory gaps (blackouts) are a cardinal symptom of multiple personality (a.k.a. "dissociative identity disorder"): when one personality has amnesia for where another personality went and/or what they did.
But this novel is not intentionally about multiple personality. So why are these things in the novel?
The presence of gratuitous symptoms (voices of alternate personalities) and jokes about multiple personality probably reflects the novelist's own psychology, what I call the novelist's multiple personality trait.
1. Fern Michaels. Hidden. New York, Zebra Books, 2021.