She thinks it's a pretty something! She holds it in place, covered in fingerprints and glowing bright, till it holds its own shape, and then she gets up and carries it out the door and runs around looking for Grandma Marianne. Where's Grandma Marianne?
"Most of them aren't, just these two," says Shell Bell. "The others are boys. There's also a Bell who's a boy. Just one. He was very put out about it to start."
"...Are... are there lots of me?" Carinna asks, sounding stunned by the possibility and not really pleased about it.
"Probably not overwhelmingly so. If you don't want to be 'Firewitch'," says Shell Bell.
"We do know that if the same set of parents have children they will wind up with children who are alts of each other. Rose and Angela both married Jokers and had daughters, and Rose's girls match Angela's elder two."
"Oh, sweetie," sighs Glass, "not all alts are much alike, anyway, if they have one of you," she gestures at the visitors, "she'll grow up in such a different place. That other Tony is even a boy, there's no telling what another Carinna would be like."
"And she wouldn't be named Carinna. Not now that we know you had the name first. Although it's a very pretty name."
It is possible that Sherlock might want there to be little princesses, at some point in the future.