"Your old friends the books have at last betrayed you, as I always said they would."
Sweet. I misspelled three of the answers--background character's names!*--so of course it counted as a wrong answer. Poo. I got an "Outstanding" on my W.O.M.B.A.T. test, though, which was rather easy compared to this one.
* Ironically, I only looked up four--if I knew the exact page they were on--to check the spelling of a character's name. XD
Also: why isn't Percy on the 'Harry Potter Quote Conjurer' Widget? (Even though that particular drawing looks more like Arthur to me, but whatever.)