As Jon walked to school, he was playfully tossing the stone back and forth between his hands, thinking of what to wish for when he met up with Karyn outside the school.
Not paying attention to where he was walking, he accidentally tripped and lost his grip on the stone. "Damn it," he muttered. He looked around and, much to his relief, found the stone only a few feet away. He picked it up and put it back in his pocket. He was being far too careless with it.
He walked away, not even noticing the small piece that had been chipped off the stone when it had struck the concrete sidewalk moments earlier. As Jon kept walking away, the chipped off piece (which was now laying in the grass, just a few feet from the sidewalk) began to grow in size. And in no time at all, it had grown to the size of the stone that it had been chipped off of.
Another wishing stone had just been born.
Meanwhile, back at Jon's house, someone walked into Jon's bedroom and immediately picked up the stone that they saw sitting on the floor.
"Where'd this come from?"