Frost floats there, staring at them, as if he's waiting for them to do something. Instead, they just start talking among themselves, as if the danger has somehow passed. It's almost comical.

"You're not very bright, are you?" Frost asks, cocking his head slightly. Then, he moves too quickly for sight, zooming in a circle around the three of them, and leaving an icy trail behind.

Appearing overhead, he snaps his fingers. A wall of ice emerges from the floor, boxing the four of them inside of it and extending into a crystalline dome overhead. The temperature drops.

"Pleasure making your acquaintance!" he calls through the ice, and then zooms away, leaving them inside an icey prison.