Harry Potter and the Goblet of Fire (Harry Potter, #4)

by J.K. Rowling

“There’s traditionally been a lot of rivalry between all the magic schools. Durmstrang and Beauxbatons like to conceal their whereabouts so nobody can steal their secrets,” said Hermione matter-of-factly. “Come off it,” said Ron, starting to laugh. “Durmstrang’s got to be about the same size as Hogwarts — how are you going to hide a great big castle?” “But Hogwarts is hidden,” said Hermione, in surprise. “Everyone knows that . . . well, everyone who’s read Hogwarts: A History, anyway.” “Just you, then,” said Ron. “So go on — how d’you hide a place like Hogwarts?” “It’s bewitched,” said Hermione. “If a Muggle looks at it, all they see is a moldering old ruin with a sign over the entrance saying DANGER, DO NOT ENTER, UNSAFE.” “So Durmstrang’ll just look like a ruin to an outsider too?” “Maybe,” said Hermione, shrugging, “or it might have Muggle-repelling charms on it, like the World Cup stadium. And to keep foreign wizards from finding it, they’ll have made it Unplottable —” “Come again?” “Well, you can enchant a building so it’s impossible to plot on a map, can’t you?”