Fred and George bewitched a number of purple lanterns, all emblazoned with a large number ‘17’, to hang in mid-air over the guests. Thanks to Mrs Weasley’s ministrations, George’s wound was neat and clean, but Harry was not yet used to the dark hole in the side of his head, despite the twins’ many jokes about it. Hermione made purple and gold streamers erupt from the end of her wand and drape themselves artistically over the trees and bushes.

