Santa's Stones

"You're only real because of this stone," Jon said, holding it up. "Oh, you've got one of those, huh?" "What?" "A magic stone. I've got one myself." Santa reached into his pocket and took out a stone that looked a lot like Jon's, except that it appeared to have red and green paint on it. "How did you get that?" "It's mine. I made it. I also made others. And it looks like one of them fell into *your* hands." "Actually, it was my grandfather's. He died recently and I got this stone from him." "Interesting," Santa said. "What's interesting about my grandfather dying?" "Jon, I don't know everything. But I do know that your grandfather *isn't* dead." Jon's eyes went wide. "Really?"