Well, the jig is up. If her House mates had any doubts about Sadde, they're gone.
...kinda. She's still young enough and androgynous enough that most of them think it's just a matter of changing her hair a bit and maybe some makeup and differently cut robes. It's not a belief that stands a whole lot of scrutiny, but given that most Slytherins give her a fairly wide berth, there's not actually been a whole lot of scrutiny.
She did find the Hufflepuff boy she spooked and tell him about it and offer to help him with his Potions homework. He was quite bewildered and suspicious because Slytherin so he didn't accept her help, but she told him to watch who she hangs out with so that he'd see she's Not Like Other Slytherins, and eventually he agreed, unable to see any way this could be a cunning plot. Which just goes to show that some people really couldn't be Slytherins.
Presently, it's Sunday, and Sadde would really like to talk to a certain Hat, which means she needs to talk to a certain Headmistress, and she suspects the most likely place she'll find her is the Head Table, at one of the meals. Breakfast is the first of those! Is McGonagall there?
"It means she's expecting a talk about sensitive issues and I couldn't very well ask her about the Hat thing right there in the middle of the Great Hall where anyone could overhear and she'd get all suspicious, I need to explain my motivations first and those are totally secret."
"Well, basically, I want to fix Slytherin's reputation and make it so the Hat doesn't just send all evil kids and kids who don't care anyway to the House. Cunning and ambition do not mean evil, and evidently neither do they mean hate for muggles," she says, gesturing at herself.
"She also suggested better internal policing, and I'm not sure how I'd do that but your help and probably Slughorn's would be good. Prefects, maybe? And also the other very good idea she had was talking to the Hat, maybe it'd be able to help, or something."
She sighs. "Well, I mean, in theory I do, but like, it feels like the standard methods aren't actually working? Unless internal policing has been extremely lax these past few years, but Professor Slughorn doesn't look like—well, I mean, he's fun and boisterous and stuff, but he looks like the kind of person who takes serious things seriously?"
"Professor Slughorn was brought out of retirement a few years ago," McGonagall says. "Prior to that time the head of house was Professor Snape, who did not devote very much attention to such affairs. So there may be some lingering effects from that, although you are correct that Professor Slughorn takes a serious approach to serious matters."
"Hm. In that case, there's this boy called Nyle Arens who jinxed me the other day, Professor Spukhafte might tell you about what happened, and he also punched me and flung me against a wall. This last part was in revenge, though, because I replaced all his underwear with girls' underwear, which I did because of the jinxing. So I guess both of us need disciplinary action?"
Well, yeah, sure, I imagined something like that would happen already, but surely there's some way to help now? I expect you can't tell me personal stuff about the students, and I wouldn't really want to know them anyway, but maybe you could give me some tips? I was thinking about uniting the first years and having us become an actually positive influence there, sort of a reverse peer pressure to the older years, and also to the younger years. Professor McGonagall said that better policing was also going to happen.
Slytherins do not take so well to being policed. You're too liquid and determined. Directing their efforts toward things other than infighting will work better than trying to disincentivize infighting. First years will have difficulty commanding respect; you will find this obstacle shrinks over time, and faster the more accomplishments you have to your collective names.
She unhats, and focuses on the other two witches.
"So, it said that I had to get really awesome so people would look up to me, and also that Slytherins and policing don't mix too well and trying to channel their efforts into productive stuff will work better than punishing unproductive stuff, but the punishment thing might also help some, there. Kinda carrots-and-sticks thing? Yeah. Also that I should try to cultivate social capital and spend it a lot, so lots of politicking, I guess. And I'm gonna unite all Slytherin firsties and be Queen Firstie!"
"About the channeling energy productively thing, maybe you could start some kind of club," Miranda says to Sadde.
"About which the standard guidelines and requirements for faculty supervision will apply," says McGonagall.
"I was mostly joking about the Queen Firstie thing, but yes I definitely will become impressive academically. I've got Potions and Transfiguration in mind so far, if I have lots of free time I might add Charms—definitely not Herbology. And a club... what kinda club would Slytherins want to actually join? Other than 'We hate muggles' club, that one didn't end well..."
"Good idea!" she says brightly. "I would actually be surprised if they were in many, what with the whole 'everyone other than themselves hates them,' but I guess it's worth looking into it. Hmm, I might actually have to be friendly to a lot of people who think I'm only marginally less contemptible than dirt they scrapped off their boots..."
"Slytherins are not, so far as I know, systematically hedged out of membership in ordinary clubs such as Charms or Gobstones," says McGonagall, "provided, as with any other entrant, they are interested in the subject and not disruptive."
She shrugs. "It's the 'not disruptive' part that I'm doubtful of," she says. "I think Jacob might actually be too terrified of the older years to ask, but sure, I'll see if he can do it. And if he won't, well, maybe I could befriend the other firsty snakes and see if they could do it. Ooooor I could actually be friendly to the older years, without being doormatty, that actually sounds like fun, too."
"...There's definitely no risk it will try to re-sort me?"
"Not in a way that will matter practically. It may continue to have whatever mixed opinion originally led you to wonder that."
"Then yes, please."
Miranda: meet hat.
You could have helped Slytherin help you. It would greatly benefit from your greatness, and you could reshape the Slytherins to come, who would in turn owe their own greatness to you. Not that you are unlikely to be great regardless of which House you find yourself in, but you will find fewer peers in them.
Beyond what we have already discussed, there is little Slytherin could do for you that Ravenclaw cannot, and your friendship with Miss Woods might well provide you with much her House would otherwise have. I am afraid I have no advice I could give you that you would not be able to generate yourself, at least without knowing about any specific goals you have in mind.
"Oh, but some, then? I was thinking I'd unite the firsty snakes, get us to be a force opposed to the older ones' prejudice and stuff. A friend," who is totally not her Ravenclaw-not-a-Slytherin friend called Miranda, "suggested clubs, something to channel their energy away from infighting and muggle hate. Also there's the 'being awesome and making people want to be Slytherin and awesome too' strategy but that's longer term, except I need to be at least a little awesome first so the older years will take me seriously. And also I want to be friends with everyone and start undoing some of the stereotypes against snakes."
"Right! Also I want to make a new Philosopher's Stone and a Panacea but that's for later. Anyhow, d'you think you could help some? In a, you know, more Slytherin way? Nudge some students my way, maybe? I think you could probably help, you're our Head of House, surely people will listen to you and your expertise more than they'd do me."
"I'm only so often approached for advice reasonably given in the form of 'why don't you talk to Miss or Mr. Woods as the case may be'. It would be easier if you were a source of tutoring, but you are likely unqualified to tutor anything other than possibly Muggle Studies, which exactly two Slytherins are currently taking and, I believe, passing without trouble."
"Oh, but that's promising already. Two Slytherins taking Muggle Studies? Who? I could start by talking to them, they should be more approachable. I got Jacob to start asking around for clubs Slytherins might want to join and see if I can't start one—or maybe he could, it's best if the Muggleborn isn't the founder at least for now." She beams. "I got a really good feeling about this project!"
Sadde was watching the whole exchange with a smirk, but then says, "Oh, yeah. Astoria was only in it for the easy credits, and Cole pretended that was true of himself as well but he was actually really curious about how people deal without magic. I think there's some parents stuff going on there."
"Yeah, like, blood purism run in families I guess? So when I offered to talk to him without any witnesses he scoffed but then did show up. He's actually pretty nice, he's the one who told me—well, asked me about rubber ducks. Astoria was more flippant, but she didn't act disgusted by my very existence, and she thought Arens was a twat and I felt really really tempted to sow some discord there but I actually defended him! ...in a, you know, 'oh poor thing he doesn't know better' condescending kind of way but still it could have been much worse and I think I deserve a cookie for my self restraint!"
"You'd be differently interesting and possibly in a more focused way. But if that was all you changed and you didn't replace your irrepressibility with anything else you'd probably have a lot of time allocated for doing literally nothing, which would admittedly be dull."