Isk nodded solemnly. "It will do little good at home," he said, "the air is as dry as the sand. But knowledge is knowledge."
Suspecting that forming ice around fire wasn't really the best first lesson, he picked up one of the rapidly-melting pieces of Axel's ice-shell and regarded it quizzically. Meltwater was all over its surface, a little drop threatening to drip off the bottom, and he didn't want it to melt.
The weredragon had said: Want, then have. So the droplet wouldn't fall. And it didn't, solidifying into part of the block of ice. Of course, now it was getting a bit too cold for his foot, so he laid it carefully in the grass, but it was clearly growing, the tiny crystals of new frost riming its edges.
In retrospect, he probably should have thought of calling frost himself, but then you often needed another perspective to show you what you'd overlooked. That was why there were Learners in the first place.