“What about Luna?”

“Well, if they’re telling the truth and she’s still alive —” began Ron.

“Don’t say that, don’t say it!” squealed Hermione. “She must be alive, she must!”

“Then she’ll be in Azkaban, I expect,” said Ron. “Whether she survives the place, though . . . Loads don’t. . . .”

“She will,” said Harry. He could not bear to contemplate the alternative. “She’s tough, Luna, much tougher than you’d think. She’s probably teaching all the inmates about Wrackspurts and Nargles.”

Harry Potter and the Deathly Hallows – J.K. Rowling