"Have you tried thawing it? Like, with a lighter or something?"

What else could be done... well, she could try shooting it. Hit it.

Maybe something more large scale would work best, hitting the whole area at once. Like with an acidic wave. But that would leave marks that may be hard to explain away if someone finds the place later. Not that she'd have to do the explaining because she wouldn't be there, but if someone follows it... Everyone here seems to have rules about staying hidden. And with everyone obeying them, there's probably mechanisms enforcing them, too. She'd rather not get that kind of problem.

Shooting it or punching it, then.