She beams and kisses him on the cheek again before turning to the sprog. "I'm going to need you to hold the door for me, okay?"

"Okay."

They go back into the bar-proper and Edie opens the door and sits down in front of it to play doorstop.

Hi, she sends through the wall when she's out the door. I'm an alternate version of your daughter.

...I can certainly [see/sense/perceive] that. What--

Milliways summary! I'm not actually from the world I'm currently staying in, even, so that's two possible ways to get between worlds that I know of, although 'teleporting accident' isn't terribly replicable. Anyway: I'm not a mutant but I am super magic and I regrew my boyfriend's brother's hand, like, the first day I got there, before I had actually met my boyfriend, and I can fix your spine if you want me to.

Please.

It takes a minute, because she needs to be extra-careful to get it right. And: Ooh, muscle atrophy in the legs, of course, I can fix that too.

Amusement. Yes, that would be nice. Is there anything you can't fix?

Death and evil gods. Yet. She fixes the atrophy.

Thank you.

Most welcome. My magic's transferrable, too, I've been teaching little me everything I can and I'm going to be sending her home with more.

Of course you are, he says affectionately.

I really miss my version of you.

You absolutely have permission to damage the wall to get through, it would have happened in an accident sooner or later anyway.

Property damage! Hugs!

Hugs. I must admit I'm curious to meet this person who apparently has both versions of my daughter so charmed. At the look on her face he adds, No, I haven't been reading your mind, but Edie's been filling me in quite enthusiastically since the door was opened.

...Dearheart, how d'you feel about meeting my alternate-universe dad?

Sure! He's up and ambulatory?

Yep! Had to repair some atrophy in the legs, as well as the initial injury, but mending something that has all the pieces there is way faster than regenerating bone. Even if it is a little trickier, when it's a spinal injury.

Congrats. I am happy to come say hi but if Edie gets distracted from holding that door everyone in my world dies so maybe we should drag a chair in front of it or something.

I think everyone in your world dies only if neither of us ever finds a Milliways door ever again? Which is a very long time, considering that neither of us is going to die of old age. And it'd probably be safer to have little me and a chair, if we're going with the chair.

By the time we find another door a hundred years could have passed back home. 

I thiiink the Milliways thing is time stopping not just time compressing?

Yeah. If anyone from this world is in Milliways. If no one's in Milliways then the two worlds run along at their separate paces.

Let's ask Bar.