And Pradnakt gives her a tight squeeze and a kiss on the cheek.

"We have a couple hours before dinner, anything you want to do?"

"...I...hm.  I don't know if I've anything in mind.  Planning our shopping trip tomorrow?"

"Sure." She reverts to the datapad for this - her fledgling speech technique isn't remotely up to the task - and also consults with Daisy on some details.

The first issue is a somewhat more comprehensive than usual complement of orbital and long-range automated defenses; there are presumably more than just the ones Pradnakt knows about, but even given that she doesn't expect them to be especially difficult to deal with. The base itself has a very standard defensive system, but that's because Pritruth's strategy when threatened is to call in favors to have other Sith come to his defense, and doesn't want them distracted by something nonstandard; Pradnakt can narrow down his likely defenders to a largeish handful of possibilities but doesn't know much about their combat capabilities, mostly.

As far as Lord Pritruth's apprentices and their resources - the youngest is Tenin, sixteen and already vicious, who she recommends killing despite the fact that he's not yet powerful enough to be much of a threat. Lord Valyr, the materials researcher, specializes in telekinesis, especially fine detail at range, and has her own apprentice, Rin; they're relatively prosocial as Sith go, and it may be worth trying to leave them alive, though in that case Pradnakt strongly prefers that Diana prepare to be able to hold them securely on the Subtle Knife - it may be workable, but it's never safe to trust a Sith. The torture researcher is Lord Grauzatis, and he specializes in mind tricks and the immersive hallucinations that are the advanced form of that technique; Pradnakt thinks it'll be best for everyone involved, Lord Grauzatis included, if he's killed, and ideally they'll come up with a way to do that at range, though she does know how to fight someone with his specialty if need be - it's a two person job, and Diana isn't going to like it at all. Lord Pritruth is slightly less terrifying than Lord Grauzatis to consider fighting, but not by very much; his specialty is emotional manipulation, and he's strong with both 'saber and lightning, including exotic lightning effects and a basic grasp of Pradnakt's lightning halo technique.

Further logistics - the obvious thing to worry about is Lord Grauzatis' victims; one of them is in a bulky life support machine and won't survive any appreciable length of time without it, and most if not all of the rest really ought to be hospitalized too, though she's hazy on the details - possibly they should be bringing some sort of medical personnel along to handle some of their immediate needs. The droids are also a consideration, but presumably they'll be fine staying in the compound while Diana and Pradnakt take care of more pressing problems, and they can come back for them afterward.

Diana can indeed arrange for the capability to hold prisoners; the ship's set up to make it readily possible.

...She wants to at least try to help Tenin...but she'll bow to Pradnakt's wisdom, if she thinks him truly too far gone to - potentially convert to a less deadly philosophy.

It's better that one die than many, if you can't ensure that the number of deaths is zero.

Lord Valyr sounds like someone Diana could have worked alongside, in an alternate universe; they've some similar skillsets and potentially similar interests.  She knows how to secure a ship against herself, and will be so doing, then.  It's not normally worth the extra operational frustration, which is why she doesn't do it all the time, but now...She'll get out the fancy locks.

Lord Grauzatis...

She has some ideas for how to handle him, even up close.

She'll brush up on blind fighting.

That said, she is not taking that as a first resort; he might be able to fool all her senses, after all, and that could end badly.

She also has the option of arming R4 with a sniper rifle, additional close-combat and area denial weapons, or potentially even directing shipboard cannon fire support.  You can't mind trick droids, after all.  Not without specialized study.

Lord Pritruth is going to be the most annoying, even if he's also the most straightforward.  Exotic lightning effects like what, exactly, and what are his preferred emotions to stoke and damp, if Pradnakt knows?

The problem with Tenin is that, young or not, he's already a Sith in philosophy; it's less that there's no possible situation that might cause him to turn and more that there's no possible situation in which it's wise to trust that he has, because he can and will lie about it. She won't stop Diana from trying, though, she supposes.

Grauzatis can, in fact, fool multiple senses at once, even Force senses if he's facing someone less powerful than he is, and she's not sure which way to bet on that one. Droid support might be useful - she's not familiar with it as a strategy, so can't say for sure - but seems dangerous for the droids; Nine is probably a better option than R4, if they're going that route. He spends most of his time in his compound, so they can't just nuke him from orbit without risking the lives of his victims, and she thinks they have better options than that.

Pritruth will most likely go for either a fear or rage effect with Diana, depending on whether he wants to try to recruit her or not - the fear effect is probably a bit more likely, since it'll be safer for him if it works; if he does opt for a rage effect she should be prepared for him to switch to a strong calming effect if he feels threatened, to try to make her apathetic enough to stop fighting. As far as lightning effects, she knows he can do telekinesis, or extra pain, or extra damage, but in theory he could incorporate any Force effect, that's a big part of why lightning is so popular.

"...He'll be trying to stop a Jedi with calm!  Ha!  Won't he be very surprised!

"Additionally, tutaminis is a hard counter to Force Lightning if I have enough focus to pull it off; it's energy, therefore I can redirect it."

"And yes, there's no situation in which it would be truly wise to trust Tenin...save as we can trust incentive alignment at all.  The question is determining what he wants, and then putting him in a situation where getting what he wants requires behaving non-Sithily in an ongoing manner, until it becomes simple habit.

"It will take a while, but I do think it will work if we try."

"As far as Grauzatis and blasting him from orbit, no, we couldn't do that.  The bolts would decohere, even leaving aside his victim-hostages.  Dragging him into the open and having R4 blast him from midair would probably work, though, if it could be done.

"You'd normally be right that Nine would be safer, but R4's as armored as I am and Nine actually isn't yet.  Perhaps I can find more plating and mesh out on our shopping trip, though, or rework all that scrap into something that's potentially useful."

"Don't - underestimate - the calm effect; you haven't seen it at full power yet. It's a valid tactic. Tenin... maybe... but I don't trust him not to play a long game, here." She shrugs. "Like I said, you can try. I don't expect Grauzitas to... fall for a lure, to get him out. If you can drag him you don't need to, you've won already."

"We should test the calming effect and whether I can do things under it under controlled conditions beforehand, then.

"And if Tenin plays a long game, then we'll just have to play longer.  Still, it's...I want to try.

"Yeah, if I'm expecting anyone to give me especial trouble it's Grauzatis.

"Does he ever leave?"

"Not really. His suite isn't in there exactly but it's nearby, and he mostly gets meals brought to him. He goes to the all-hands dinner every week but Pritruth won't be doing that now, too obvious a target."

"I meant like going outside, but I'm guessing he doesn't."

"Yeah, no. Not never but not normally and I'd be shocked under these circumstances."

"Yeah.

"How good a sensor is he?"

Handwobble. "Middling? Solid basics, uses Force empathy in his work, not a specialist."

"I do know some stealth techniques; if we infiltrate, then launch our first strike on him..."

"Not impossible that it'd work; no more likely than any other Sith, though. And you're fucked if you solo it and it doesn't."

"...Yeah, relying on that would be...bad.

"...Does he need to know what he's inducing?"

Another handwobble. "Yes, but that doesn't matter much for combat use, you still can't fight him if you can't sense him."

"...One more question, then: Can he do negative hallucinations, make something that's there appear not?  Especially if he doesn't know that there's anything happening."

"If he doesn't know you're there he can't target you. Not sure about the other part."

"I was thinking about closing my helmet up and fighting by instrument, as anti-mindfuckery tactics.  Then again, he'd probably notice that.  ...What's the tactic you think I won't like for fighting him?"

"Helmet trick won't work, you won't be able to see the instruments. My tactic is, he can only target one person at a time, and I think he'll go for me preferentially." She tries to keep the tension out of her voice; it basically works.

"Depends on how I'm looking, I think."

"...Ah."

"...Yeah, no, we're not counting on that; it's not tactically sound.  But if he can only target one at a time...

"...Well, how many of the others would be glad to see him dead, do you think?"

"Pritruth obviously won't; Tenin looks up to him; Valyr wouldn't mind; Rin doesn't like him but isn't very strong. He's not friendly with outsiders but they usually respect him on reputation. I do think he'll go for me, though, we have history."

"If we can get Valyr on board with killing him, I'd feel like taking him on directly might be more reasonable as a last resort.  I just don't think that any two-person group facing him is in any way a good idea."

"Worth trying for, but not worth depending on. Especially if we kill Pritruth first, he might kill her before we can get to her in that case."