Harry Potter: How [a TERF] Writes Mystery

J. K. Rowling - the writer
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4 Video Views·Jun 21, 2025
The Harry Potter novels are excellent mystery stories. In this episode, I take a look at a handful of the techniques J.K. Rowling uses to successfully hide clues throughout the novels so that the reader always has a chance of successfully solving the mystery themselves.
The Harry Potter books are extremely effective mysteries. They're fantasy books too, but underneath the
fantastical setting is a story about deduction,
interrogations, and clue-gathering. And they are effective mysteries because they are fair. Rowling doesn't cheat.
All of the clues are there for the reader to put together if they pay close enough attention.
And I've seen a lot of recent mystery stories stray away from that approach.
You see, mysteries are all about asking questions and then giving answers and you run into trouble if you focus too much on one
or the other. JJ Abrams is famous for the term the mystery box, a style of storytelling that
emphasizes the ethos of mystery, of making viewers ask questions while delaying payoffs almost
indefinitely. In The Force Awakens, for instance,
he makes us wonder who Rey's parents are, even though at the time no one making the movie knew the answer.
That's probably the biggest reason some fans felt cheated by The Last Jedi.
It wasn't a fair game. On the other side of the spectrum, you have scenes like this.
Yes, where should we start?
How about them? He's treating her to a meal, but his own portion is small. That means he wants to impress her.
But he's trying to economize on his own food. Maybe he's just not hungry. No, small plate starter.
He's practically licked it clean. She's nearly finished her pavlova. If she treated him as much as he wanted, he's hungry, alright?
Now, Sherlock is a show I enjoyed, but rarely as a mystery.
There are so many scenes in the series that tell us how intelligent Sherlock is, but we don't get the chance to deduce anything for ourselves.
It's just, here's the answers. See? I'm smart. Harry Potter is much more like the classic Sherlock Holmes stories.
It balances it perfectly, telling mysteries that are solvable without being obvious.
But that's just the approach. What we really want to find out is how does Rowling do this?
How do you hide clues in a book when your readers are going to see every single word you write?
My inclination when starting this was that films had a huge advantage over the written word when it comes to hiding clues.
In the sixth sense, spoiler warning, the fact that Bruce Willis's character is dead is
foreshadowed in a number of ways and often by the absence of something happening, like the fact that no one speaks to him or
acknowledges him. These clues all work well visually, but would be harder to hide in prose.
But what I found is that the opposite is also sometimes true.
Nothing exists in fiction without the author putting it there, and with just a few vague phrases, Rowling can conceal
information from the reader in places that movies can't. For instance, in book three, one of the mysteries is that Professor Lupin is a
werewolf, and one of the clues is that when Lupin faces a Boggart, a creature that turns into whatever you fear most,
it turns into a silvery white orb hanging in the air. Now, here's what that looks like on film.
It takes more effort from the reader to figure out that Lupin is afraid of the moon in the books than it does in the film.
Rowling will also regularly downplay a key character in a mystery by excluding them from the dialogue. In book two,
Ginny turns out to be the one who opened the Chamber of Secrets while under the control of Voldemort.
We never really suspect her because she never really talks. The book will frequently tell us how she's doing, never good,
but it's always in the context of listing how everyone is handling the recent traumatic events.
It doesn't work as well in the movie since the film can't really tell us her inner thoughts without her emoting in a way that
gives up the game. So instead, we only get like one cutaway to her with a blank expression and then one shot of her looking
guilty that is a dead giveaway.
Speaking of Ginny, another great way of hiding clues is by burying them in a list and then misdirecting away from them. Rowling does this
constantly. A key clue in the second book is that Ginny brings a diary to school. The first mention of this comes in a
comedic list of all the Weasley kids forgetting stuff at home.
So we assume it's here because of the joke. Similar instances of burying clues in a bunch of other
information happens here in book 3 when the twins tell Harry about all the passages out of Hogwarts, here when the team
accidentally comes across a horcrux while cleaning Sirius's house in book 5, and
here in book 6 when Harry finds another horcrux without knowing it. In book 5,
Broderick Bode is assassinated by a sentient plant while in the hospital.
We actually see the plant arrive, but there's also a distinctive calendar that comes with it
so we don't focus too much on the plant. And then Rowling immediately directs our attention away to something that we care
intensely about, Neville's parents, who we've heard a lot about but haven't seen yet. That way our attention doesn't linger too long here.
The great advantage of this series being a fantasy mystery series is that the fantasy element provides a ton of
miscellaneous scene decorations that can cloak the mystery elements. Most of these things are useless in the context of the mystery,
even though they are extremely useful in other parts of the plot.
But while the world of Harry Potter is
remarkably varied in all of the stuff that fleshes out the world, something that remains
consistent and keeps us grounded is the physical descriptions of the characters. Here's a test.
I'm going to give you three descriptions of three different characters, and I'll give you a second to guess who they are.
Okay, so the answers are Snape, Draco, and Trelawney. If you got any of those right, that's amazing.
I mean, think about this.
It's probably been years since you've read the books, and with just a few words of description, a
fictional character out of a universe of literally thousands pops right into your head. And it's all because of
repetition, plain and simple. Rowling never misses a chance to mention a character's signature physical description.
So if a character with bushy brown hair runs out of the room, we know it's Hermione. If someone is wearing half-moon spectacles,
it's always Dumbledore. A woman with a toad-like face is always Umbridge.
The reason this is useful when crafting a mystery story is that Rowling can conceal a character whenever she wants, while still making it a
fair game for the reader to figure out who they are. In Book 5, Harry
accidentally smashes a crystal ball with a prophecy inside. A ghostly form of a woman with eyes magnified by her glasses
emerges. Harry thinks he recognizes her, but it's not confirmed until his talk with Dumbledore 30 pages later.
But an attentive reader will already know it's Trelawney, and enjoy being proved right later on.
So with clever descriptions, muted culprits, buried clues, and
signature descriptions, Rowling tells mystery stories that are solvable and incredibly satisfying to read from beginning to end. And
if you're looking for reasons why these novels engaged so many millions of young readers, I'd put that somewhere near the top of the list.
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