Grace had a nightmare.
Her nightmare was bizarre, chaotic, irrational, unaccountable, and she did terrible things. Including something to Katherine.
That morning Grace apologized to Katherine.
Katherine was confused. “You’re sorry for what?”
“I can’t tell you.”
“Is it something you did?”
“No.”
“But if it’s something you didn’t do, why are you standing there apologizing to me?” Katherine asked, beginning to feel amused.
“I have a very good reason.”
“Which is?”
“It’s something you’ll never know.”
“Now you’re just being Grace.”
“I must be Grace.”