"I think that Riddle has somehow reanimated Dumbledore using his Horcrux, so that it's a part of him now," Harry went on. "A truly horrifying part. For aside from being the Dumbledore we knew, with all his incredible power, I think this may also be the version of Dumbledore from Riddle's own mind ... the only man he truly feared ... somehow, made flesh. Super-powered ... charged with all of Riddle's evil and cruelty and, more worryingly, his fear of the real Dumbledore!"