Books·Updated on Dec 26, 2019. Posted on Dec 21, 2019Only True "Harry Potter" Fans Can Get 6/8 On This Book-Only Trivia QuizIt's time to weed out the casuals.by Tessa FaheyBuzzFeed StaffFacebookPinterestTwitterMailLink What color are Harry's eyes in the books? Getty Images Blue Correct Incorrect Blue Brown Correct Incorrect Brown Green Correct Incorrect Green Gray Correct Incorrect Gray Correct! Wrong! They're green, just like his mother's! His eyes are blue in the movies because Daniel Radcliffe's eyes are naturally blue and he had a bad reaction to colored contact lenses. What's the name of the poltergeist who haunts Hogwarts in the books? Getty Images The Bloody Baron Correct Incorrect The Bloody Baron Peeves Correct Incorrect Peeves Hankerton Humble Correct Incorrect Hankerton Humble The Fat Friar Correct Incorrect The Fat Friar Correct! Wrong! It's Peeves! Depite being a part of every book, Peeves was completely cut from the movies. Which of these wizarding schools is coed in the books? Getty Images Hogwarts Correct Incorrect Hogwarts Durmstrang Correct Incorrect Durmstrang Beauxbatons Correct Incorrect Beauxbatons All of the above Correct Incorrect All of the above Correct! Wrong! They're all coed! In fact, Nicolas Flamel was a graduate of Beauxbatons, and the founder of Durmstrang was a witch named Nerida Vulchanova! How old is Sirius Black when Harry meets him in the third book? Getty Images 34 Correct Incorrect 34 41 Correct Incorrect 41 47 Correct Incorrect 47 53 Correct Incorrect 53 Correct! Wrong! He's only 34! However, the actors cast to play the Marauders in the movies were all in their forties. Which two Gryffindors are chosen as prefects in the fifth book? Getty Images Harry & Parvati Correct Incorrect Harry & Parvati Ron & Hermione Correct Incorrect Ron & Hermione Neville & Parvati Correct Incorrect Neville & Parvati Ron & Lavender Correct Incorrect Ron & Lavender Correct! Wrong! It's Ron & Hermione! This detail was cut from the movies. Who gives Harry the idea to use gillyweed in the fourth book? Getty Images Neville Correct Incorrect Neville Hagrid Correct Incorrect Hagrid Dobby Correct Incorrect Dobby Mad-Eye Moody Correct Incorrect Mad-Eye Moody Correct! Wrong! It's Dobby! In the movie, it's Neville who gives him the idea. Who are the first two free house-elves to work at Hogwarts? Getty Images Dobby & Winky Correct Incorrect Dobby & Winky Dobby & Hokey Correct Incorrect Dobby & Hokey Dobby & Kreacher Correct Incorrect Dobby & Kreacher Dobby & Blinky Correct Incorrect Dobby & Blinky Correct! Wrong! It's Dobby and Winky! Dobby was freed from the Malfoy family and Winky from the Crouch family, but unlike Dobby, Winky never actually wanted freedom. Winky never appears in the movies. Who betrays Dumbledore's Army in the fifth book? Getty Images Cho Chang Correct Incorrect Cho Chang Justin Finch-Fletchley Correct Incorrect Justin Finch-Fletchley Marietta Edgecombe Correct Incorrect Marietta Edgecombe Zacharias Smith Correct Incorrect Zacharias Smith Correct! Wrong! It's Marietta Edgecombe! She's Cho's friend who was reluctant to join the D.A. Her character was cut from the movies, so instead, Cho betrays the D.A. to Umbridge in the fifth movie.