Natty made a noise of admiration at the master-not-master skimming the stone with a deft sort of certainty.

But then his eyes returned to Winnie with just a little bit of wonder, greatly enjoying how the young man's imagination worked. "That's a very sweet thought", he said warmly. "Though..." he'd picked up another stone, but hesitated, looking at it with some amusement, "that makes me want to stop bothering them."