"Or that.

In theory forcing an oath wouldn't work properly but there are probably satisfactory workarounds."

"What stops it from working?"

"Intent matters. Swear at gunpoint and your intent is 'avoid being shot'. It'll still work but - partially, it'll have latitude for reinterpretation..."

"At Doriath they suggested I catch an orc. I couldn't talk to one but osanwë works, apparently."

"Want to give it a go?"

"Odds the orc can telepathically report in? Is there a way to block that, by the way, what kind of signal is it using?"

"There's no way known to us to block osanwe, but it's an easy experiment to run if you want to just make a wall of various materials that block some things, I can get someone to stand on the other side."

"Wall won't do it if the signal bounces intelligently, it'd have to completely surround."

"Okay. Put me in a bubble of everything you think might do it, and I'll just see if I can reach anyone."

Cam looks some things up, and then, bubble.

And Fëanáro says. "Oh, excellent, that works."

"Narrow it down or save it?"

"You can do bubbles with half the materials, narrow it down quickly, unless you think they're interacting..."

"Yeah -" Cam interpolates a hole in this bubble so he can get out, makes another when he has.

There are three different materials that do it. "Wonder if any of them block a Maia," Fëanáro says, "they're much - louder. Tyelcormo, could you come bring Huan by, please?"

"What exactly is the deal with Maiar, anyway, besides 'Valar but less so and possibly slightly more normal personalities maybe sometimes'?"

"Valar but less so," Fëanáro says, "and I don't think the median personality is any more normal but there's probably a million of them so at least some by sheer chance have human-comprehensible motives. Or partially. For instance, Huan prefers to spend all of his time as a dog, which I don't really understand, but likes my son and supported us in attempting this. So."

"...okay."

They come in a minute later. Huan is an exceptionally large, glossy, friendly-looking dog.  

Our osanwe isn't chip-based and I would be surprised if the same measures affect it. 

Cam hears that. 

"...yeah, possibly, since I could hear that," Cam says, "but it's worth a try anyhow. Okay to bubble you?"

Yes. 

Bubble.

Testing. 

"Okay, so that's doing something else and I don't have a guess about blocking it." He interpolates Huan a door out of the bubble.

Huan shoots him an amused glance and then bites down on the door and gnaws through it. He pauses a minute. What material is this?