Someone comes through the door who does not look to be in the best of shape, physically. Ragged hair, kind of thin and gaunt, ratty clothes. She looks back through her door confusedly (to what appears to be a very very spartan bedroom), then stares at the exploding stars in wonder for a bit.

"Hi! Welcome to Milliways."

She subconsciously goes into a sort of ready-to-run posture and does a glance over of them, looking for weapons. They're neither guards nor other workers.

"...Hi. What is Milliways besides should-be-impossible?"

She observes this stance change!

"Milliways is an interdimensional bar that stops time in universes that have people from them here."

"Well, as far as I know 'interdimensional' theory, travelling between the things let alone a stable portal ought to be flat impossible. But it's not like impossible things haven't happened before, and here I am."

"Yeah, this is magic."

"No such thing, I feel obliged to say. Only the laws of physics and chemistry and our own wits to work with."

"Huh. That's...probably less crazy than it sounds to me."

"I mean, the laws of physics can get up to some pretty impressive stuff. But still. What does one do in Milliways?"

"Depends on a lot of stuff. The Bar sells things from all the universes, and there's the time stop effect..."

She scowls briefly. "Well. What if you don't have money?"

"You can run up a tab. Bar is apparently metaphysically obligated to charge for things but not to not extend infinite credit and she doesn't actually care if you pay. There's superstitions that a large tab will make you less likely to find another Milliways door but as far as I can tell no actual evidence for that. Also, the first drink's free."

"Well I am going to have to take advantage of that because I could really use some caffeine. Hi, I'm Walta." And if I've finally snapped and this is a hallucination it's a pretty good one.

She stays near the wall as she walks over to the bar and starts reading the introduction napkins. The introduction napkins are a little alarming.

"On second thought, let's have some hearty ale instead of some coffee."

"You can also take advantage of the time-stopping effect and get a room upstairs, or just crash on one of the couches by the fireplace, if you're really tired."

She gulps the booze impressively fast, but it's a big cup. She only gets a quarter of it before she says, "Rooms? Good news. I'd need to buy or make a fold-up airplane, ballistic shield, and lightning blocker to go back out."

"That sounds like a story."

"Maybe I don't want to tell it quite yet because I'm not sure if... I'm not sure."

"...Okay. You seem pretty clearly not alright, is there anything that we could do that would be unambiguously helpful whether or not the thing you're not sure of is true?"

"...Tell me about cool tech you've heard of? Nothing weapony."

"What year are you from? Your clothes look like you're probably from an Earth, but without the year I'm not sure if I should be saying, like, 'combustion engines' or 'cell phones'."

"We have combustion engines. We have calculators. We have airplanes and zeppelins. Never heard of cell phones."

"We actually mostly don't do zeppelins anymore, they're generally considered obsolete. Um, do you have non-cell telephones?

"They're new and expensive, but a few places do. It's mostly telegraphs."

"Well, boosting your communications infrastructure by a few decades mostly isn't weaponizeable at all! I don't happen to recall how the various transitions happened but we can borrow books from Bar."

"That'd be neat. Radio waves? I wonder how the Darwinists do it."