"Not much," says Aegis, tapping the gem in her ear. "Not even a whole alcove. If you don't have computers here there's no need for her to have a full-featured Janepoint, so you just want one of these gems to wear yourself - I can make it for you, what color do you want? - and a static point so that she can move people in and out of your world whenever she likes. What d'you want to call the world?"