    So to say that Harry was surprised to receive a birthday cake – he’d never received a birthday cake, wouldn’t have known what one was if Dudley hadn’t been around – instead of death was something of an understatement. And when it became clear to Hagrid – who had introduced himself as the Keeper of Keys and Grounds at Hogwarts – that Harry had no idea what he was talking about, the man had turned to shout at Uncle Vernon and Aunt Petunia.