Naturally, just when Harry was starting to get used to things, he suddenly felt his entire being be pulled backwards like he was getting sucked into a vacuum cleaner. It wasn’t wholly dissimilar to Apparating or using a portkey, but it was just as unpleasant. His white scenery changed into pitch blackness, then the next thing he knew, his head exploded with a rush of memories. Everything from the very first thing he could remember right up until the summer of his fourth year at Hogwarts came stampeding through his brain, flooding it with every little thing down to the last detail. Faces, places, words spoken, feelings, emotions, all of it crammed into his skull and when that was done, everything else that happened afterwards.