"Flowers in the Attic" (post 3) by V. C. Andrews: Characters Hear Voices in Their Head or Speak Using Voices of Alternate Personalities

“Go away, run away, spring was approaching, we had to leave soon, before it was too late. A voice inside, intuitive, kept drumming out this tune” (1, p. 316).

“Are you all right?” he asked.

“Yes, I’m surviving.” And then I said good night in a voice that didn’t even sound like me.

“Good night Cathy,” he said, using someone else’s voice, too.” (1, p. 323).

“My instinct was shouting loud: Wake him up!  My suspicions whispered slyly, keep quiet, don’t let him know; he won’t want you…” (1, p. 328).

Comment: Above probably reflected author’s multiple personality trait.

1. V. C. Andrews. Flowers in the Attic. 40th Anniversary Edition. With a Foreword by Gillian Flynn. New York, Gallery Books, 1979/2019.