Groosham Grange Books in Order

Groosham Grange is Horowitz’s twist on the British boarding-school story, with the rules flipped and the teachers very much not on your side. The main character, David Eliot, is a boy who keeps getting kicked out of schools for reasons he can’t explain. When a mysterious letter offers him a place at Groosham Grange, it feels like a last chance.

Groosham is isolated, old, and full of students who don’t quite behave like normal kids. Very quickly, David realizes the school isn’t training future doctors and lawyers. It’s training witches, warlocks, and something stranger still. David is told there’s something unusual about him, and at Groosham that kind of detail matters. He doesn’t know why. The fun is in watching him try to work out what he is, and what the school expects him to become, without giving the wrong answer.

Groosham does not play fair.

Horowitz leans into the odd details: sinister staff, secret lessons, weird punishments, and the feeling that every corridor leads to a new rule you didn’t know existed. The tone is dark without being grim, and the story keeps its pace with short scenes and constant surprises. Under the jokes, there’s a real sense of menace, the kind that makes a harmless prank feel like a trap.

The series also has a clear emotional engine. David wants to belong, but he doesn’t want to become the kind of person Groosham is shaping. Friendships matter, rivalries get sharp, and the school itself feels like a character, tempting and threatening in the same breath.

Part of the charm is the satire. Groosham has the rituals and traditions you expect from a boarding school, but everything is slightly off, as if the school is mocking the normal world. That keeps the books from feeling like pure horror, even when the danger gets real. It’s a quick read, but it sticks in your mind.

Start with Groosham Grange and then move to the sequel, sometimes published as Return to Groosham Grange (also known as The Unholy Grail). Read them in order, because the second book builds on what David learns about the school and about himself. If you like stories with secret schools, rules you have to decode, and just enough darkness to make you look twice at the next page, this is a great place to begin.