Horrible Harry
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40 free Horrible Harry trivia questions with answers — literature quiz, new questions added Oct 2026.
Horrible Harry is not really horrible. He loves slimy things, practical jokes and a good scare, and since 1988 Suzy Kline's chapter books about him have been a first step into longer reading for second and third graders. This quiz covers the series the way a class reads it: the opening stories in Horrible Harry in Room 2B, the stargazing project in Horrible Harry Goes to the Moon, and the best-known adventures in between, from green slime and an ant invasion to the Drop of Doom, a dragon war and a Halloween mystery. Expect questions on Harry's friends and rivals, Song Lee, Miss Mackle and the rest of South School, plus a few on how the books came to be written. It works as a comprehension check after finishing a book, a warm-up for a book club or reading group, or a nostalgia test for grown-ups who met Harry years ago. Every answer comes with a short explanation.
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Q 01In Horrible Harry Goes to the Moon, what does Harry find advertised secondhand in the newspaper?
A telescope
A telescope is what Harry spots in the paper, and Miss Mackle suggests the class raise the money to buy it for their moon study unit.
Q 02Which classmate narrates Horrible Harry in Room 2B as the best friend of the mischievous Harry?
Doug
Doug narrates every Horrible Harry book, and he also tells the spin-off stories about their classmate Song Lee.
Q 03What creature does Harry use to tease his classmate Song Lee in Horrible Harry in Room 2B?
A snake
A snake is Harry's idea of a joke on Song Lee in the first book, yet she soon becomes the classmate he has a crush on.
Q 04In Horrible Harry in Room 2B, which treat meant for the school librarian gets eaten before delivery?
A cupcake
A cupcake for the librarian never arrives, because Harry talks his classmates into eating it on the way to deliver it.
Q 05In Horrible Harry in Room 2B, which bird's name do other kids call Harry to taunt him?
Canary
Canary is the taunt, and Harry gets back at the kids who use it. The name returns in a later book when Sidney dares him onto a scary ride.
Q 06What job did Horrible Harry author Suzy Kline hold in Connecticut while writing the early books?
Schoolteacher
Schoolteacher Suzy Kline taught second and third grade in Torrington for 24 years, and says most of her stories were inspired by the classroom.
Q 07In Horrible Harry at Halloween, Harry skips scary costumes to dress as a sergeant from which TV show?
Dragnet
Dragnet's Sergeant Joe Friday is Harry's surprise costume, and he gets to play detective for real when a classmate's fairy dust goes missing.
Q 08Song Lee, the shy classmate Harry adores in the Horrible Harry books, has which family heritage?
Korean
Korean heritage belongs to Song Lee, who is as nice as Harry is horrible and stars in four spin-off books of her own.
Q 09Which fear must Harry face on a ride at Mountainside Park in Horrible Harry and the Drop of Doom?
Elevators
Elevators scare Harry because he was once stuck inside one, and the Drop of Doom ride is a thirteen-storey elevator plunge.
Q 10Suzy Kline says the first Horrible Harry book grew from which tiny gift from a student named Robert?
A pencil stub
A pencil stub from a second grader sat by Suzy Kline's typewriter until it inspired Harry's scary 'stub people', built from classroom scraps.
Q 11In Horrible Harry Goes to the Moon, how does Room 3B raise money for its moon study purchase?
A bake sale
A bake sale pays for the class's stargazing gear, and Suzy Kline's own activity guide suggests real classrooms try the same fundraiser.
Q 12Who is the principal of South School, where Horrible Harry and his friends fill Room 2B?
Mr. Cardini
Mr. Cardini runs South School, where Harry's class stays together with the same teacher from second grade into third.
Q 13What is the last name of Harry, the prank-loving hero of Suzy Kline's Horrible Harry books?
Spooger
Spooger is Harry's surname, and it took him 30 years of real time to get through second and third grade.
Q 21In Horrible Harry and the Goog, what kind of animal is Googer, who gets loose inside South School?
A cat
A cat named Googer is Harry's pet, and chasing him takes the boys into parts of the school where students are never allowed.
Q 22In Horrible Harry and the Dungeon, which math topic does Mr. Skooghammer teach Harry?
Fibonacci numbers
Fibonacci numbers are the lesson, and Suzy Kline returned to the idea years later when she needed a mathematical code for Harry to crack in the cafeteria.
Q 23In Horrible Harry Cracks the Code, Harry calls himself the world's second-best detective after whom?
Sherlock Holmes
Sherlock Holmes is the only sleuth Harry ranks above himself, and he sets out to prove it by working out how to win the new cafeteria contest.
Q 14In Horrible Harry Moves Up to Third Grade, which pet of Harry's does his rival Sidney kill?
A spider
A spider kept as a pet is the casualty, and it sets Harry against Sidney just as the whole class starts third grade together.
Q 15In Horrible Harry's Secret, which food does Song Lee feed the pet water frog that fascinates the boys?
Liver
Liver is the frog's meal, a sure magnet for second-grade boys, though Harry soon finds he is drawn to more than the frog.
Q 16In a Horrible Harry spin-off, which pet of Song Lee's escapes its cage and sparks a Room 2B search?
A hamster
A hamster named Yi goes missing from its cage, and the class puts up signs, sets humane traps and offers peanut butter treats to lure it back.
Q 17In Horrible Harry and the Dragon War, which insult aimed at Song Lee's dragon starts the fight?
Stupid
Stupid is the word Harry uses, and Song Lee refuses to make up for three full hours, a standoff that drags in the whole class.
Q 18In Horrible Harry and the Mud Gremlins, what does Harry lead classmates off school grounds to see?
Mushrooms
Mushrooms, a whole 'kingdom' of them, grow just beyond the playground fence, so seeing them means breaking a school rule and then fibbing about the mud.
Q 19In Horrible Harry Goes to Sea, an ancestor of classmate Ida survived the sinking of which ship?
Titanic
Titanic survivor stories from Ida's family make everyone wish they could sail on a big ship, so Miss Mackle takes the class on a riverboat trip.
Q 20In Horrible Harry and the Holidaze, which relative's move to a nursing home leaves Harry feeling low?
Great-grandfather
Great-grandfather has gone to live in a nursing home, so Miss Mackle takes the whole class to visit him, which cheers Harry up considerably.
Q 24In Horrible Harry and the Dungeon, which part of South School do the second graders call 'the Dungeon'?
The suspension room
The suspension room is where misbehaving students go under a new school rule, and Harry won't be satisfied until he has seen it for himself.
Q 25Which classic novel is Miss Mackle reading aloud to the class in Horrible Harry and the Purple People?
Alice in Wonderland
Alice in Wonderland sets the mood for Harry's invisible visitors, and Suzy Kline modelled the class party at the end on the Mad Hatter's tea party.
Q 26In Horrible Harry and the Purple People, what does Harry throw on a classmate to produce a Purple Person?
Grape juice
Grape juice splashed on a classmate is how Harry finally produces one of the invisible visitors he insists are in the room.
Q 27Suzy Kline based the slime in Horrible Harry and the Green Slime on water mixed with which kitchen ingredient?
Cornstarch
Cornstarch stirred with water flows like a liquid but turns solid when it lands, a trick Kline's daughter brought home from high school chemistry.
Q 28In Horrible Harry and the Ant Invasion, which Room 2B classroom pet dies, leaving Harry under suspicion?
A fish
A fish from the class tank goes belly-up in the middle of a busy stretch of class pictures, square dancing and an ant-watching project.
Q 29In Horrible Harry and the Christmas Surprise, where is Miss Mackle as the holiday approaches?
In the hospital
In the hospital is where Miss Mackle lands, so nobody in Room 2B feels like celebrating until Harry looks for a way to cheer her up.
Q 30In Horrible Harry and the Kickball Wedding, Harry plans to marry Song Lee near which holiday?
Valentine's Day
Valentine's Day is right around the corner when Harry hatches the idea, and by the end he really does 'marry' Song Lee on the day itself.