The spring really can't answer questions that aren't about what various things cost.

If somebody else had amnesia, like, uh - "Lianelle can you find the Wikipedia page on amnesia and read me the name of somebody with amnesia, to compare with -"

"Henry Molaison?"

"Is he still alive or dead?"

"Dead."

Spring, how much would it cost to resurrect Henry Molaison and restore his memories?

A week and five minutes.

And would that five minute figure tend to be the same for any other amnesias she cured?

Give or take a few minutes.

Does the spring successfully identify Lianelle as a member of the class "people with amnesia", if she were going to do it in a big batch -

"Hey, I've finished thinking through things and am available to test out how the veil affects me?"

"Sure. What kind of test are you comfortable with?"

"What sort did you have in mind?"

"Well, I'm not sure how much each test will contaminate future ones, but - let's discuss this on the way to the transport point, actually, I've got a spot I like for going back and forth."

"Okay."

Off they go. "So the most obvious thing to do is just bring you back and have you report what you believe about things like what year it is, how you got where and when you are, etcetera, and then maybe have me turn invisible and back or something simple like that to see what beliefs you form about that."

"That sounds acceptable to me - you can turn invisible?"

"I'm selectively imperceptible in general but if I become inaudible then you can't tell it apart from me just deciding not to make any sounds while moving my mouth or whatever."

"How useful." And terrifying in the wrong hands!

"It's useful in dungeons but my dungeoneering career is taking a backseat for the time being."

Once they get to the swap spot - nice and concealed in the Spring world, not too hard to get to on her own side - across they all go.

"Welcome back to your native universe."

"Well, I don't feel immediately different."

"What year is it?"

"Uh, 2034 in your place, 2024 in this one."

"How did you get here and now?"

"You resurrected me in a different universe using magic from this one and then moved us here from that universe, also using magic."