Hermione Granger: [after her faux pas about Luna's name] So... that's an interesting necklace.
Luna Lovegood: It's a charm actually. It keeps away the Nargles.
[awkward silence]
Luna Lovegood: Hungry. I hope they have pudding.
[the carriage starts rolling]
Neville Longbottom: [whispering] What's a Nargle?
Hermione Granger: [whispering] No idea.