"This'll take a minute, I can't technically do that directly, I'll have sort through 'em manually. Well. Technologically." External data storage thingie containing the circles! Plug in to her computer! Sort!

She purses her lips. "About two million two hundred and fifty thousand who've summoned an ungagged demon within the last five years, fewer who make a habit of it...four hundred and fifty thousand who make a habit of it. To three significant digits."

"That is a lot of people. Likelier we'll find a suitable one, harder to pick them out..."

"Yeah, I'm conjuring what information I can on them," she makes another storage device and plugs it in. "See if I can find anything that stands out with a few searches."

"Excuses to have been doing research on the planet's core?"

"Yeah, and what kinds of things they've been doing summoning for, and stuff like that, to get a better handle on whether they'd be inclined to...cooperate..huh. This one has the same surname as Emily and me."

"...we've been assuming this universe doesn't have you two in it, is that correctly assumed?"

"...She doesn't have the same first name as either of us, but...what the heck, her parents have the same names as our parents. And she looks like me." She conjures a picture. It does indeed look a lot like her, but with white hair textured more like Emily's and an Emilyish smile.

"...so, you don't exist in this universe, but a sort of sister does?"

"Or something? I died more than a hundred years ago, this is weird."

"I hadn't realized that, that makes it significantly weirder."

"No kidding."

"Think a lookalike's likely to be truthworthy? And a good liar? And willing to go along with this?"

"Based on the rest of her public records...I'm guessing yes."

"Then we've found our summoner, now how to sneak the daeva she supposedly summoned onto the planet with her - lightleapers are currently headed somewhere else entirely, just to be safe..."

"I can make a new one."

"Probably not mid-leap? I can also redirect these, though it sets us back a couple days."

"Probably not mid-leap, no."

"If we could pull that off we could probably figure out how to do instantaneous planetside takeoff." 

"I guess I could try but it seems like the kind of thing that could have horrible failure modes."

"Yeah, maybe try back in Hell with some demons who want to play around with lightleaping, after the war's over."

"It might actually be safest to do with demons in not Hell since on possible failure mode--granted I have no idea if this is plausible or not--is that it fails in some way that leaves you stranded a distance away from where you started not plausibly traversible without one. And Hell doesn't have a convenient starscape to navigate by."

Hmm, fair enough. Well, if we pull this out I can summon some demon friends of yours to try to play around back in my native galaxy.

That'd be cool. And if they do get stranded they can write me a letter and I can let whoever's summoned them know to dismiss them.

Or they can build themselves a new one, you can usually pilot them home even if you're lost, unless you're very interestingly lost which I suppose could happen.

I'll take your word for it. Actually, no, I should probably learn how to fly one of these things.