Every year for the past decade or so, my heart has been broken by a terrible new Harry Potter game (except for Lego Harry Potter, which went some way towards mending it before Deathly Hallows Part 1 shattered it again). The Potter books are such a universal touchstone for anybody under the age of 25 that it's frankly baffling that nobody has tried to take advantage of our nostalgia with a half-decent video game involving wands. People under 25 tend to play a lot of videogames, after all...