"I didn't like it because it confused me," she says. "I am not sure what I think of being edited for amplified masochism."

"Well," says Stella, shrugging, "I can also just go spend several hours in one of those bedrooms there with Alice and come out and dump a lot of complimentary wish-coins in your lap, but I think you'll want a supply of new ones, and given the time oddities of Milliways I will not always be able to respond promptly to requests for top-ups. I am happy to help, though. I have an embarrassment of riches. My magic is fucked up but I have a way to use it really, really well."

"What do you prefer?" she asks Bell.

"I... don't know," says Shell Bell. "Can you tell us more about how the magic works, Stella?"

"That nickname's going to take some getting used to," chuckles Stella. "Yeah. It's good that you've got people working with you already, because the minting power is a little picky about where the pain comes from. I could wish myself a square's worth of pain, but I couldn't make a coin out of it - no bootstrapping. But if I wish Alice a square's worth of pain -" She does, as casually as she might poke him in the arm - "then he can make a square out of it. If I were working alone I'd have to operate solely through physical injury, which I'd certainly find unpleasant and I imagine you would too."

"Hm," is all Sherlock says to that.

(Alice grins at his Bella. Alice loves his Bella.)

"I can comfortably - well, not literally comfortably, but unproblematically - make triangles and squares," says Stella. She bites the inside of her cheek, and holds up a glowy red square. "These will actually accomplish a fair amount if you're smart about it, although triangles are only for very minor tasks - they'd be an edge, in a world with no magic, but not a decisive one. A square will conjure you a nonmagical object, or give you about five minutes' worth of some nonmagical skill or property - I masochistified myself for a brief period once, before I got hit by the van, when we didn't have a hex to turn Alice into a mint and we were trying to figure out a way for me to tolerate it. It wasn't my favorite experience, and I'm not actually sure if my ingot power would let me do it more sustainably if I tried. Pentagons can do permanent nonmagical skills - languages are what I've done the most, though I can also play the flute and kick ass at aikido and such. Hexes are for permanent magic powers." She floats out of her chair. "And similarly large-scale stuff. And stars... are for terraforming, or eradicating diseases from the face of a planet, things like that."

"Could I," says Sherlock, "try this brain edit, and reverse it if I don't like it for some reason?"

Bella tosses her the square. "You want help wish-designing or do you think you've got it covered? Oh, and I've already got an agony beam installed, let me know if you want to take it for a test run."

"You're very casual about this," observes Shell Bell.

"Blame him," laughs Stella, aiming a thumb at Alice. "Amariah's got one too, the book says, though as of the writing they weren't dating; check up on her later and if you can stomach it ask what they get up to."

"That's a range," says Stella. "Going from ten 'triangles' -" She offers up ten triangles' worth of pain. "Through ninety-nine." She skips up to that, then backs off. "It goes up by orders of magnitude. A hundred and up for a pentagon, a thousand and up for a hex, ten thousand and up for a star, and one time Alice made an eight-pointed thing that I consider probably evil and have not attempted to use."

"A thousand, then?" she requests.

Bam. Still in "plain". "Because this was designed for Alice, who finds the agony beam to be just about his favorite thing," says Stella dryly, "it comes in flavors. This is plain, but if you have a request, I can oblige. I am like unto an ice cream parlor."

"Well," she says, "the masochism edit worked. And I should have no trouble producing hexes if I make it permanent and someone is willing to... beam at me."

"I... guess... I can do that?" Bell asks, looking uncertainly at Stella. "Did it take a lot of getting used to?"

"Not that much, but it helps that, one, Alice makes fascinating faces when in pain, which Sherlock doesn't appear to, and two, I can read his mind and confirm at whim that he's having fun with it, which my best guess is that Sherlock wouldn't care for," says Stella.

"Make her able to read my mind," Sherlock says immediately. "—If you want, Bell."

"Um - are you sure?" Bell asks.

"I said I would transmit to you my entire knowledge of the world if I could. I meant it," says Sherlock.

"You're sweet," sighs Shell Bell, and she hugs her girlfriend tight. "Okay. Um, how does yours work, Stella? I don't know if I just want the same design that's optimized for Alice."

"I get everything in a visual channel as a first pass. He can tell when I'm doing it - Sherlock, that feels like so, but it could be anything - and it's in words and images and symbols for various sensory experiences, mostly, most of the time, with a little blob that changes shape and color and so on to reflect his emotional state. When he doesn't think in words, I get the words I'd be thinking if I had that thought, and if I wouldn't be able to translate it either, then the magic itself makes an attempt - these three possibilities appear in different colors. Otherwise I get a black box, the symbol for something I didn't manage to include - I've updated it a couple times to cut down on those, I get very few anymore. Things are tagged with whether they're current experiences, a memory he's thinking about, an intent, or whatever. Everything has a border in grayscale to indicate affect towards the bordered thing - more white is better. I can 'open' any of these things to get a more detailed look at it, which is not just a visual channel and can be very... heady. Oh, and I can sort through his memories the same way, which feels slightly different on his end, like so."

"I see no immediate flaws," says Sherlock. "Except that this visual channel of yours is likely to be very busy."