Cam catches a summons while he's in the middle of Atriama. He's seen it before, it's fine.
"There are definitely existing ones; I'll look into which if any would have you, them, and slaves benefiting from your collective interaction."
". . . do alternate universes have less-degrading alternatives to cat carriers; I'm not sure we can get away with having her walk freely in a hotel."
Cam explains to Mr. Mistoffelees this constraint and asks how she'd like to handle it.
"I think a carrier sounds fine as long as it isn't a sucky one."
"The one you make should be easy to see out of but have a place where no one can see me and it should be hard to swing me around or bump into things on accident. Maybe something like what - Ellie, has." She points with her paw to the backpack slung over her human's shoulder. "But with more structure in the base so I have something to sit on properly."
Cam whips up a design on his computer of a stiff-bottomed backpack with the bottom compartment roofed in fabric but easy to poke one's cat-sized head through. "Like this?"
"I was thinking more like the type of fabric that's all little holes, for a window. And it has to be black."
"That's fine. Co-designing things is way easier when you can talk to the other person. And I guess when you have screens and can just appear things."
"It's very convenient, this sort of thing used to be a lot harder before they invented the kind I can control with my brain." He materializes the designed backpack.
"They'll have to be redesigned for cat brains, if they work on this planet with its weird biology at all."
"Hmph." She climbs in the backpack. "I guess I'll just have to keep making better hands."
"That's the spirit." He dons the backpack since Ellie already has one.
Then Ellie can lead them all to a hotel! It is neither ritzy nor a dump.
Cool. He will book a room with two beds in case Ellie wants to move in later.
He can do that!
"Do you need a brief rundown of how money works here?" asks Felicity once they all get to the room.