This hell is not very different from how it was in ...her nightmare. The air is thick and cloying and poisonous and there's shrieking coming from all directions at high volume and the ground looks black and sticky. There are fields and rocks and windswept plains and rivers full of sewage.

Well, she's not here to build a summer home, and given recent spaceflights, she doesn't need to have breathable air around herself to keep breathing. 

Lurconis is about where she left him, too, a horrible writing mass of black scales with no discernible head.

Ah. Welcome back, little girl.

"Hi!" says Karen, retrieving her lantern. "I'm here to - "

And that's all she gets, because Lurconis's tail lashes out at her, trying to snatch her out of the air. She dodges and creates a bubble force field around herself, in case she doesn't next time.

It's not a short fight. She's able to stab him with a lot of stuff, spears and bullets and massive green shuriken. On the other hand, her forcefields aren't impenetrable, and whenever Lurconis gets a solid hit on them, they shatter, and she's left to cut her way out of his grip.

When they're both tired out, she falls back. The ring is blinking, letting her know she's almost out of power. She spends, like, three seconds considering not recharging, given that the normal way of recharging is to say the oath, and she's sure it's safe but she told Alex she wouldn't.

You can probably just say any random vaguely thematic thing, though. Jack T. Chance does.

"Thy will be done," she says, holding her ring up to her lantern. "On Earth, and here, as it is in Heaven. Green Lantern's light."

And that works.

Your powers can't end me, girl, says Lurconis, oozing black blood from his wounds as Karen's ring glows brighter. In time you will tire and fall.

She can't kill him with constructs. She knew that going in. But hell is very much like it was in her nightmare, and she remembers her nightmare very well.

She lifts her enemy up with a massive strainer. His blood drips out out of it. Pieces of trash and treasure fall out of the holes as he thrashes. It's a big construct, and she can't sustain it for long, but she is able to keep it up for long enough to locate the specific shiny she's looking for.

The sword from her nightmare has a midnight blue blade, and it's been half-hidden in the muck. It barely reflects the light from her constructs. Still, when she pulls it out and holds it in her hand, she knows it's the right one. 

She lets Lurconis fall. She flies through the air, slashes through the loops in his horrible writhing form, finds his head, and cuts it clean off. As before, he rots almost instantly.

"Jack T. Chance school of superheroics, my guy," she tells the rotting pile of flesh. " - I guess I should tell Dennis that one when Dennis is back, he's pretty much the only person I know who'll even know what that means."

She spends a few more seconds staring, and then remembers that she has a time limit.

Sorry, she thinks, flying back up into her world, clutching her sword in one hand and her lantern in the other. Took longer than I thought it was gonna.

- well how long were you thinking it was gonna?

I figured maybe I could fatally stab him in less than a whole forty minutes. He's just big and has that unbreakable skeleton and stuff. Or, uh, had.

You were gone eighty-six seconds.

Was not, not unless -

- not unless hell has time dilation and everything lasts thirty times longer there than here, and - what time is it now -

8:22.

I don't know exactly how much we could do for hell in three days of work time, even with green lantern powers, but like, in theory -

Lurconis probably isn't the only thing like that there.

Probably not!

Wanna come clean up a hell? You're gonna want earplugs. And, uh, possibly the equivalent for every other sense. 

Yes, I do.

She flies to her house and spends six seconds grabbing her ready-to-go adventure bag, because she's the sort of person who has one of those.

I can pick you up if you give me a location? - also, uh, tell Giles to wait, again, it'd suck to get stuck there.

Yeah I told him not to do it until he gets the go-ahead or it's nearly midnight. I want to check back here every subjective hour just to be safe.

Sounds good. Shouldn't have trouble with it, given my apparent flight speed.

Uh huh. Want to come pick me up?

Yeah!

And here she is, almost immediately. 

You OK just, like, sitting in a bubble or something?

Yep.

Express line to hell, comin' right up.

She makes a green bubble and flies, down through the sewers and the earth and the portal to hell.

Hell is really really ugly.

Well. Here's hell. I have earplugs in my pack if you want 'em.

Wow. Sigh. I think I should be able to just - destroy my capacity to hear or smell things, one second - 

She waits a couple seconds. 

Did it work?

Yep. Sorry - Quendi don't really cope well with places that are bad.

S' no problem. I'm sorry it's hard. I could maybe literally clean it up, but that'd take time we could use to do other things, and I think maybe it's all like this -

And there might be non-baby-eating locals who prefer it like this, we'd be pretty out of line. I don't think it'll kill me and if I'm wrong about that I'll know well before it does.