Cam catches this summons while he is in his garden, because he has come to the realization that he finds bonsai really boring even if you are skipping a lot of the steps with conjuration and he does not want to continue to maintain this tiny tree enough to be at home for it for the next while.
"Some of... you... figured out how to write well enough to summon and turn into punctuation marks, that would also have worked."
"I think we were just trying to work out words. The us that wrote that wasn't the same us that tried to eat you but we weren't all that different, you know?"
"Yes!" they reply in English. "But we only know it from watching videos from Old Earth, no one speaks it here," they continue in the other language. "Waow... multiple languages..." They take off and swirl around in the air in delight.
"Yeah! We are everything on the planet. Well, everything that was on the planet before humans and plants arrived. But the humans seem convinced that demons don't really exist so this is surprising!"
"This planet's years are not the same length as Old Earth's. Let's see... If we convert, it's the year 2555? Yeah, that sounds right."
"Wow, my timeline with demons and stuff is only up to 2179. This one has, uh, farther-flung space colonization? What else?"
"I think I'm not from the past! It'd be a pretty big deal to forget that demons exist!"
"I just think something other than straightforward time travel is going on, it sounds like maybe we have at least two universes around and in one of them demons were publicized and in the other people eventually colonized wherever this is. I could make sure time is running normally at home if my summoner cares to know, but I, uh, don't know if that's you or not as these things go." Pick pick pick goo out of his wings and his hair and off his pants which he cannot trivially replace right now.
"They wrote some stuff into the circle about what I can make but they can let me make more." As far as he can tell his current ability to make things is nil but there could be exceptions he hasn't stumbled across and wasn't able to read in the dark.
"Ooh. What stuff can you make? ...could you make? If, you know, your summoner felt like letting you."
"Arbitrary material objects. It is in fact good practice to not let strange demons you don't know totally loose with that, but I don't mean anybody any harm. I guess I would have done the worm some harm escaping if I'd been able but the other worm seems to have taken care of that for me?"
"Yeah, we did. Since that us were wrong, we ate us. If they were right, they might've eaten us instead, dunno." Shrug. "How do you make arbitrary material objects? Are you like plants?" The word translates as "plants" but has some... other connotations. Like they're not regular photosynthesising flora and instead can do many other things, but not that.