LONDON - JULY 20:  A young Canadian fan dressed up as Harry Potter takes his ticket from within his passport before meeting author J.K. Rowling at a reading and signing of her of her latest novel 'Harry Potter and the Deathly Hallows' at the Natural History Museum on July 20, 2007 in London, England. This the final of seven novels in the Harry Potter collection, which goes on sale from one minute past midnight.  (Photo by Cate Gillon/Getty Images)