Harry Potter and the Sorcerer's Stone (Harry Potter, #1)

by J.K. Rowling

“Wizards have banks?” “Just the one. Gringotts. Run by goblins.” Harry dropped the bit of sausage he was holding. “Goblins?” “Yeah — so yeh’d be mad ter try an’ rob it, I’ll tell yeh that. Never mess with goblins, Harry.