Half-Blood Prince promo banner surfaces by MuggleNet · February 21, 2009 A new promotional banner for Harry Potter and the Half-Blood Prince has appeared online thanks to Oclumencia. The banner depicts Young Tom Riddle, Draco, Snape, Harry, and Ginny. You can see it right here. We're wondering why these five were put together in one photo. Any wild theories? Thanks again to Oclumencia!