If we publicize that anyone at our border who doesn't want to owe fealty to a king can join the republic, a notable minority might take us up on it. It snowballs from there, of course."
"There's some serious collective action problem there, as long as your neighbors are still operating under a noble class who'd like to keep their jobs and their peasants don't have understood-to-be-trustworthy sources of news about the Britons."
Once hostilities are ended, nobles with too much time on their hands will travel through simply to see what's there. Eventually some of them will decide they'd rather join. We could even use bribery.
It'll be easier now, because they're under the thumb of the same Church. If the Church confirms and spreads the Republic proclamation, the Anglo-Saxons join us. The Picts might follow them, and the Gaels trust the Picts."
"Ah, I wasn't sure if there were pagans of some sort running around complicating the issue. But part of what I mean is that it might not be very safe for people to run away and join the Brits, they might run into punishment for defectors between there and here."
And we might even get other sides to agree that any people group or area of land that wants to join can. We'd be in a much better bargaining position, after all."
"Oh, entire fiefdoms, I see. Well, I'll help you bribe them if that seems expedient."
What if we just walk into a throne room while the king is holding court? Everyone would see our faces and the fact that they inexplicably can't stop us, but we would be able to leave with a royal bargaining chip."
"I could do this while wearing a mask," Cam says. "You're squishier... But I'd be hard pressed to do the job without visible magic. I don't think I can so much as hit people with tranquilizer darts without appearing the guns pre-aimed, I am not a marksman. I can knock out everyone I meet, though."
"How about a suit of plate mail? An armored knight walking in and everyone who challenges him falling over is...I don't know if that particular story has been told, but it's the kind of thing that would sound familiar and believable."
"Me or you in the armor? The problem with that is that without a set of wings I'm likely to fall over more than once on the way in. Being a maker doesn't do a thing for being clumsy. Does that ruin the effect? I could pose as your clumsy squire or something, I suppose."
If I'm in the armor do you think you could manage a disguise as someone who belongs there? You only need to get in the room, but you won't have seen their styles of speech or dress before."
"I can make clothes to match if you give me a loose idea of what they should look like. And keep my mouth shut when I can and mumble when I can't?"
You'll probably stand out for one reason or another, but if there's a sufficiently ominous figure in black armor nobody will remember someone looking slightly out of place."
"I'll wear a lot of black and a hood. Do you have preferences on what you want the armor to look like or should I be going for 'dark fantasy antagonist, only easy to walk in'?"
As long as there's an obvious lack of coat of arms, little else matters. To their eyes it'll shout about how anonymous I'm being. That and ability to turn a sword, just in case."
"I can try, although I've never experimented with making armor before. I'm thinking aluminum-titanium alloy to keep it light. Maybe black diamond plated."
If we fail, it'd be because whichever king we target happens to not be at his palace that day. I can't think of a way to get around that, but the only risk is of walking in, looking somewhat silly, and turning around."
"Is there a way to salvage even that? Deliver a suitably ominous message?"
"Probably. Perhaps claim to have done the same to a few other kings, tell them the terms of the deal, and then go actually do the same to the other kings?"
"And rely on inaccurate timekeeping and distorted delivery of messages to get the chronology muddled?"
"Precisely! It's not like there's frequent communication, even between allies. We'd have weeks if we needed them."
Do makers sleep? I can find you a room if you want one."
"I can sleep but I can also just drink lots of coffee, and I'm planning to sit up reading history articles if there's nothing else for me to do."