Aren't you two ever going to read Hogwarts, A History?"

"What's the point?" said Ron. "You know it by heart, we can just ask you.

The singing grew louder as they approached the church. It made Harry’s throat constrict, it reminded him so forcefully of Hogwarts, of Peeves bellowing rude versions of carols from inside suits of armour, of the Great Hall’s twelve Christmas trees, of Dumbledore wearing a bonnet he had won in a cracker, of Ron in a hand-knitted sweater…

Then he heard a terrible cry that pulled at his insides, that expressed agony of a kind that neither flame nor curse could cause, and he stood up, swaying, more frightened than he had been that day, more frightened, perhaps, than he had been in his whole life...

Harry picked it up and stared at it, his heart twanging like a giant elastic band. No one, ever, in his whole life, had written to him. Who would? He had no friends, no other relatives — he didn’t belong to the library, so he’d never even got rude notes asking for books back. Yet here it was, a letter, addressed so plainly there could be no mistake:

Mr. H. Potter
The Cupboard under the Stairs
4 Privet Drive
Little Whinging
Surrey

Draco Dormiens Nunquam Titillandus

Potter wasn't such an unusual name. He was sure there were lots of people called Potter who had a son called Harry. Come to think of it, he wasn't even sure his nephew was called Harry. He'd never even seen the boy. It might have been Harvey. Or Harold.