"Yes, we performed a ritual," said Neville. "We were both touched by the Prophecy. Riddle could have picked either of us. Fate had gifted us both with such a powerful basis of magic that either of us could have been the child of the prophecy. Riddle picked one, but that didn't mean the other was diminished. Harry sought me out as soon as he could after finding that out, as soon as he knew what we could become by uniting our powers. We bonded through blood, became more powerful as brothers than we'd ever have been as individuals, and we declared Riddle a mortal enemy of us both. Seriously, that serpentine fuckwit has no idea what's coming at him."