Karyn giggled. "I guess you are. Now let's see... how about some new clothes?"
"I don't know," said Jonnie. "Maybe the people at home are expecting me to be wearing maid clothes. They could find it strange that I'm wearing anything else. I suppose I could wish for different clothes and they'd think it was normal, though."
"Yeah, you'd better go home and find out exactly what everyone remembers about you."
Jonnie turned, until Karyn added "....not!"
"Huh?" replied Jonnie.
"Jon, you have a magic stone. You don't have to go stumbling around trying to guess from everyone's reaction what they remember about you--just ask it."
"Oh. I never thought of that! I guess robots aren't super-intelligent. I wish I knew what my history is in this reality."
Nothing happened.
"It's not working," said Jonnie.
"Hmm," said Karyn. "Let me see that." She reached out her hand and Jonnie handed her the stone. "I wish that me and Jonnie know what her history is in this reality, and why that wish didn't work."
In the end, Jonnie had to go home without the rock. The problem was that since robots are not technically alive, the stone wouldn't accept wishes from them, just like you couldn't record your voice and play it back to make a wish. Which meant that for now Karyn had to keep the stone.
Jonnie's history was interesting, if not entirely unexpected. Jon was not remembered and did not exist. When Jon's grandfather died (or rather, the man who would have been his grandfather if there had still been a Jon), he didn't send over a stone, he sent over Jonnie and the stone, along with some paperwork. Jon's family were surprised to find a girl on their doorstep and doubly surprised to learn that the girl was really a machine programmed to do household tasks, but they decided to keep it quiet for now. Therefore, they enrolled Jonnie in school as a "niece who just moved into town." The paperwork included a phony birth certificate, car registration, and all sorts of other paper records so that Jonnie was officially just a new girl at school.
As for programming, Jonnie kept Jon's memory because she heard the wish. The memory that Jonnie should have in this reality (now that the Sandra incident was gone) was of being first activated, then being sent to Jon's family, then going to school for one day, then visiting Karyn and coming home. Jon's personality was mostly the same, except for two changes. First of all, there was robot programming that modified certain aspects of it--Jonnie was programmed to enjoy doing household chores and obeying orders, although technically she was only required to obey them from Karyn. Second, Jonnie's personality had been altered even before being turned into a robot, because she wanted to talk to girls more easily and got the desires of a girl, which clashed terribly with her memories of being a boy.
Jonnie drove up to the house and parked. She unlocked the door, went in, and said "Hi everyone!"
"Incredible," said Jon's brother. "You sound just like a real girl."