Were she on her own, it would have been much easier to slip away unnoticed. Garen makes the effort not to be noisy, true, but not enough to match her; and moving without the hindrance of being bound to him was something Katarina could have done without. The assassin knows, however, for all her skill in stealth, she would likely be dead were she alone. She surely had been close to it, only the knight's intervention preventing that outcome.
The circumstances aren't ideal, but when were they ever? Following plans is all well and good when they work, yet reality seldom cares for each carefully crafted step idealized before being realized as intended. Improvising had saved her more times than she could count; this would be no different. Her life and her freedom would both remain intact by the end of this.
Katarina had slipped out of Demacia at the beginning of a rebellion and following the murder of a king. Escaping Demacians under regular circumstances couldn't possibly be more difficult than that. A concern for later, nonetheless; they had to survive before she could think about escaping.
"Honor and good deeds are subjective," She repeats, mockery blatant in her tone. "Is that how you Demacians excuse hunting down mages? Or rather — the mages not related to you?"
"Either way, if you freed me we'd have much better odds in a fight," A hopeless request, the assassin is certain, but there is nothing to lose with insisting on it. "Enough you wouldn't have to worry about my shrill voice getting us killed."
"You can't say all that and expect me to be silent, though. A Demacian admitting things are not black and white? That's a first." Relentless provocation wouldn't help convince Garen she ought to be freed, the Noxian knows, yet the opportunity is too good to pass up. When else would she have the chance to learn more about the Captain of the Dauntless Vanguard like this? He is an important part of the Demacian military, but more than that, a friend to the fourth Jarvan. Any information on someone like that could be useful to the empire, and she isn't one to waste opportunities like that.
Besides, she could admit to herself he had caught her interest with his unwilling admissions.
"In my profession," Katarina says, with a lilt that makes it all too clear his tone had been taken as criticism, even if his wording suggested naught. Her eyes remain on the path ahead, but though she continues the conversation seemingly undisturbed, it would be a mistake to assume she wasn't very attentive to their surroundings. "I do what I must do for Noxus, same as you do for Demacia. You kill people on the battlefield, I kill them without anyone else needing to die. That's all there is of black and white in all of this. I know the empire isn't perfect, but it is worth fighting for, and if you expect me to feel any guilt by talking about what my marks might think or want, you're wasting your breath. They had to die for the good of the empire. I do not regret a single life taken for Noxus."
"But my loyalty does not make me blind. I'm not above admitting my nation has flaws, Crownguard, yet we strive to do better. Can Demacia say the same?" Can you?, the question echoes, though she does not ask in such terms. "Maybe I'm not good by your standards, but your hands are not cleaner, and your nation is far from being in any position to claim the moral high ground your people act like you have a right to."
A pause, and she stops moving as he is about to turn left, an eyebrow raised as emerald eyes throw him a sharp glance. "Maybe I should stop talking, if only so you'll pay more attention to where you're going. We're not getting out of here going that way — and I don't know what foolish heroic thing you might be planning to do, but if you don't plan for us both to die, we should leave. Hiding will be a waste of time, and fighting that thing would be the most stupid way to go about this."