Mikey yawned and stretched. It was Saturday, his favorite day of the week. And this one, in particular, would probably be the best one yet, thanks to the wishing stone. He had already wished up all the video games and comic books he ever wanted, and spent the previous night playing and reading them. In fact, he was so wrapped up with his new possessions, he forgot about the wish he made on Jon - the one that was turning him into his sister Zoe. While playing one of his games, he heard who he thought was his mother talking to him through his closed bedroom door. It was hard to identify her voice, since his video game was so loud. But who else could it be other than his mother? He had just humored her and then gone back to playing his game.
So, it wasn't until he left his bedroom that Saturday morning that he noticed that Jon wasn't the only one who had changed.