[Hiccup's determination is admirable at the least. It's certainly keeping him constantly entertained.]

Heat? You poor kid, you aren't being slowed down now, are you? It'd be a shame for you to lose after all that bragging.

[With a laugh, he waves his staff to tap at the walls on either side of them, letting frost curl up in swirls along the surface in heavy layers, bringing a cool rush of air through the corridor.]