"I always knew if I was going to have a some kind of supernatural power, it would be to change my clothes and jewelry and hair and eye color and makeup to anything I want, at will. In fact, I wish that I have that power, and that nobody will notice any changes unless I want them to!"
"Good wish, Julian!" said Zoe.
"And," continued Julian, "that you have the stone back."
Nothing more happened.
"Julian," explained Zoe, "I don't think that counts as part of the same wish."
Julian said "Oh." She considered just tossing the stone back, but was amused at the idea of returning the stone with a wish, and so repeated it, or something like it. "I wish that this stone return to its owner."
Suddenly the stone vanished. "Wha--?" said both girls.
And several blocks away, Sarah McMillan suddenly felt something weird in her chest. As if the skin on her chest was being poked. No, wait... there was a stone caught under her bra, touching her skin! How did that get there? That didn't make any sense at all....