Here is Milliways. It's Milliways with an empty Belltower, but it's still a neat place to hang out between making bits of incremental progress in motion spells and coaxing advice out of the alethiometer and wedging herself into clan politics.
"Right now she's - curled up inside you asleep somewhere," Amariah says, "or you'd be a zombie, not a whole person, and right now she doesn't need things - affection, attention, people to talk to - except through you, because she's asleep. You'd be taking one very bad situation and making it a slightly less bad but duplicated situation, and it's not like you could put her away again after you had her out once. I'd recommend talking to Kas and Petaal about it."
"I'll go get them," Amariah says, and she releases Sue and heads for the door and sticks her head out. [Hey Kas! I found a fifteenish you and he's been locked up in solitary, come help me keep him company and be advicey on possibly bringing him briefly into our world so he can get a daemon and not be so lonesome?]
"Okay," says Petaal from where she's coiled around his neck as a brightly coloured snake, "where's the little-us?"
"Over there," says Amariah, pointing. "Sue! These are Kas and Petaal. Sweeties, this is Sue."
Amariah goes and sits back down where she was a moment ago. "Sue's got a Bell, but they attend school across the solar system from each other so they haven't seen each other in a long time," she says.
"You didn't mention you were magic," he says, linking back and pushing the love that underlies his hug.
Nothing happens at first.
But there's a glimmer, then a sparkle, then a cascade of golden light in the air next to him, and it coaelsces into a girl, exactly his age and exactly his height but with different body proportions and fewer clothes.
He hugs her immediately.
She turns into a viscacha and cuddles into his arms.
"Welcome to existing," laughs Amariah. "...Is my 'curled up asleep somewhere' description accurate? It was mostly guessing, but now I can just ask."