"Only matters if wizards can't, which is possible since daeva can't even when we used to be humans, but yeah."

"You can also write your immunologist friends and ask them to work on it for us in Hell, right? or would they be disinclined to do that -"

"I can, yes, but it's hard to get rigor on a hypothetical 'imagine you were trying to vaccinate the population of 1802' - and I'm not actually sure if they'll be able to conjure from your Earth, because there've never previously been results like 'tried to make a replica of the British Isles, got two copies'."

"No precedent for accidents like the one you had?"

"None."

"Anyone asked Bar how many worlds there are -"

"I have not and I don't think your brother or father have talked to her at all..."

"I maybe should have led with that, it's potentially as interesting as the 2179 thing - Bar, how many worlds are there, do you know?"

I'm afraid I simply can't keep track of such quantities.

"More than a thousand?"

Oh yes, by many orders of magnitude.

He reads this to Cam - "what does that mean -"

"Means you undershot. A lot. More than an octillion?" Cam inquires.

More than that.

"And there's never been an accidental summons anywhere else - how hard is it to do by accident -"

"Hard but not all that hard. I would actually be surprised if the Elf kid was the first person to manage it. But there's never been an accidental summons anywhere else from my daeva worlds - that's, uh, clearly not quite conclusive -"

"You think there might be other daeva worlds?"

"Maybe there's more than an octillion special snowflakes but I kind of doubt that."

"I have no concept of how many an octillion is -"

"One followed by 27 zeroes. ...In American convention; I think Britain does it differently. For reference Earth has about seven quintillion grains of sand on it and a quintillion is one followed by eighteen zeroes."

"- so then there's somewhere that can do your resurrections, we just need to find it -"

Nod.

"Maybe we should be asking Bar for a different genre of books."

"What do you have in mind? I'm assuming that magic-in-general cannot be performed via any simple action taken by people from worlds where that magic isn't standard, at least not usually or naively, or we'd both be from worlds with more than one magic system."

"Ways to get between worlds."