Suddenly the cauldron felt much warmer, more than the friction between metal and skin could have ever generated. Albus let the surface of his hands warm up against it instead.
He laughed. "I'm not telling you! You'll Petrificus them like you did Jamie and then Lily'll be left without any Potions lessons only a year before her N.E.W.T.s!"
Albus met a smirk with a questioning smile. "That was another, wasn't it? I nearly missed it."