The creature uses magic to show the images of Harry with Hermione Granger, played by Watson, to Ron, who is madly in love with her.

'Are you planning to eat or sleep at all this year, Hermione?' asked Harry, while Ron sniggered. Hermione ignored them.

He wished Ron and Hermione both luck, then turned and climbed the marble staircase again, determined, whatever Hermione said, to devote an hour or two to the Room of Requirement.