"My magic does it. You seem to have something too, though, and I'm low on inscriptions."

"Yeah, we can get you Allspeak."

Someone brings a wand!

And Cam and Loki go off to do other things.

And Tireh settles in to read.

"Let me know if you need anything, okay?"

"How do I get ahold of you?"

" - it's in the files, along with instructions on how to block it, I guarantee that no one's been reading your mind but my entire species is telepathic, you can just think at me -" like this - "and I'll hear you."

"Uh, okay."

"There're also instructions to set up your computer on the network if you prefer that. I'm Swift, there."

"Why Swift?"

"I'm from - a set of worlds that are all identical. We usually take disambiguating nicknames off the things that happened after we made interdimensional contact, and my world made contact with Loki, and she had a spell to turn people into birds which she used to rescue me and then teach me to fly." Bird. Unbird. 

"Oh, I'll stop feeling sorry for you not being able to fly, then."

"Flying is pretty great!"

Flap. "- I should just read and not occupy you but I'm not actually used to reading, I personally wrote almost everything there is to read on my planet and have only been off it for a little while."

"Oh, it's fine, another thing my people are not yet wholly sold on is 'scheduling meetings and having them at the time you scheduled them for' and I will not be missed and we don't find alts every day. If you'd rather get an illusion slideshow of the whole thing I would be delighted to provide."

"Ooh!"

Illusion map! "How much science and technology did you pick up on the way to finding us, what should I fill in-"

"I listened a lot, but anything that didn't seem like it would be important was fair game for doing magic with and I had to do a lot of translation magic and a few teleports..."

"Okay! The very short summary: this is Materia, a collection of worlds distinguished by the fact they all hate science and we can't operate there because our stuff will break, we're evacuating people instead. Your alt there, Boots, got into a magic accident and landed adjacent here, called Telperion - it's shaded like that because it's an Arda, one of the set of worlds like the one I'm from -"  all the Ardas light up - "In Telperion Boots met an alt of my father, adopted him, and got rescued by him when she got kicked out of the dimension by the Valar, the resident annoying deities in Ardas. They landed in Warp, where they ran into T'Mir, another alt of yours, who had been flying around sneaking planets in her dimension enough information to get them above the threshold for membership in this post-scarcity galactic civilization -"

And so on, the worlds lighting up to note dimensional neighborhoods - wizardry here, eclipse magic here, Tesseract here, wishing here, summoning here, morph here - and categories - "Earths have different magic every time, and so far always have a Bell, usually born in a particular time but not always, T'Mir was later - Ardas are with a few twists exactly the same until a Bell lands on them, which Bells inexplicably do with some regularity -"

And demographics - "Most dimensions are almost all vacuum with stars and planets, your dimension's like that." All such dimensions light up on the map. "All the ones we've found so far have had people but that might be an artifact of our finding procedure; about 70% have one inhabited planet, most of the rest have one species that's spread out a bit, and then a couple worlds are really dense - hundreds perhaps thousands of species, lots and lots of inhabited worlds. Edda's the worst offender there, Warp's up there, Cube's up there-"

"- I have only inklings of what you might be expecting me to get out of the 'alt of your father' part and 'adopted', my world's different -"

"Oh - Stork doesn't have parenting either -" another world flashes - "in most species children are made, in many cases deliberately, by two adults who decide they want to raise a child together, and this is the basis of most social institutions. Your alt Kib will commiserate with you over how silly this seems to societies that don't have it."

"We have families, but people don't lay eggs till very late in life and typically don't see them hatch so we're brought up by other relatives - and I'm not sure how much nurturing other kinds of people need but we can get along with almost none if we have to -"

"Humans and Elves both need a fair bit. Elves in Valinor take almost seven hundred of your years to reach developmental maturity."

"You've got to be kidding me."