It works as expected. Then Armsmaster touches a switch and the fairylight gets shredded. "That was the easy part. And outside?"
Fairylight. At least for longer than a few seconds. After a minute or so, "Can you try something more complicated?"
She disappears—not according to his vibration sensors, Armsmaster notes, though maybe she has something else for that—and a few minutes later the machine starts smoking. Promise reappears and the light stops.
"No. But it means the problem was with building it, not designing it. Should be easier to fix." As he and Dragon resume working on it, Armsmaster asks, "How does your translation work? I was almost expecting the phone call to come through as gibberish."
"I don't really know. I just talk, and people can understand me when I talk, and I can understand them, and it seems strange that mortals do it any other way. As though you've invented an elaborate code or something. But how it works I couldn't tell you."
To Dragon, in addition to translating, he adds I doubt it's a distance limitation. Do you have any guesses at what went wrong to stop you from understanding her?
"I don't change how I'm talking depending on who I'm talking to. All this applies to writing, too."
What's the guess?
It's not completely unthinkable; maybe it could be meaningfully different from a phone if Dragon is reading real-time transcriptions of what her suit hears. But he can't think of any non-strange explanations.
I'll whip up something to test it. The translation helps.
Is it an equipment issue?
"I am, in fact, talking, for a real period of time," Promise says. "I have no idea what it sounds like to you, but so far in my life I haven't run into anyone who thinks I'm done talking before or after I really am."
"It's not as if it's logically impossible. Time to express something isn't constant; maybe some people would just think fairies talk faster or slower to get through however many words it is in their language."
"Maybe. You're welcome to have me talk to people who speak denser or more spread-out languages and see what they say, I guess, I did say I don't mind translating."
Speaking of directly useful, the defect in the harmonics flattener has hopefully been fixed.
So Promise does another map to check - "confirm flatness" is a lot faster than "map complexity" - and then she turns invisible again.
It outlasts the last attempt with no loss of the magic smoke. "This might be premature, but it seems to have worked. Try adding more sorcery, as complex as you can, and see if it gets overwhelmed."
She layers on her other undetectabilities - she will still show up on the vibration sensor, but goes inaudible and unsmellable. She grows her hair a half-inch, in lieu of actual healing. She screws around with the temperature in fine-grained ways, all within the boundaries of comfort.
The device's power consumption rises (marginally; Promise's sorcery affects harmonics far less than being in the mortal world does) but it continues to not explode.
Presently she zeroes everything out, except the hair growth, which stays. "Putting it further through its paces would begin to be difficult."
"That's good; it means it can handle at least as much as it's likely to need to. Though I wouldn't recommend relying on this for anything important until its duration has been tested more. Tested by something other than long-term invisibility, obviously."
"I could bring it back to Fairyland and try using it to grow plants rapidly. I can work on that for hours, and if I'm interrupted it's not a disaster."