I haven't figured it out yet, but look around. There's no other fuel, and we don't know how long it's been burning like this. [Of course, there could be something else entirely at work but she was going to stick with her theory for now.]

Obviously, it's not normal fire. And this isn't the world we're used to, for that matter. [She just gaped as he leaned closer, though, because that seemed like a bad idea.] Hey, uh... I wouldn't do that. It's not normal fire, but it does give off heat, so...

[Pidge was able to breathe a little easier when he leaned back again, though that relief was short-lived because of the unpleasant sounds in the distance.]

Yea. I'm pretty sure any sort of story will do. The more action-y, the better, even. [Or so she was going to assume.]