James was trying to figure out where he'd lost Moony when someone bumped into him. He turned and his eyebrows drew together. Then he grinned.
"And you're the next generation." It was funny now, looking back on it, how neatly he and Harry's daughter Lily had managed to confuse each other. And now he was looking at one of the reasons why. The resemblance was there, though maybe not quite as strong as Harry's to James - not with that hair, that must be the Weasley in him. But he was clearly Harry's son.
He offered a hand. "I am your grandfather, apparently, hard as that is to believe. Very glad to meet you."