Suddenly, both Zoe and Athena became visible. "You could see us?" Athena asked, stunned. But then an impossible thought occurred to her. "You're really Santa Claus, aren't you?"
"What?" Zoe asked, looking at her friend like she had lost her mind. "Santa isn't real, Athena. He's just some made-up character for kids."
"No. He saw us when we were invisible," Athena said. "That means that he's magical."
"Seriously?" Zoe asked, then turned back towards the man who looked like Santa.
"That's right, Zoe. I'm Santa Claus. And that stone you have in your hand," he said, pointing at the one Athena was holding "... is mine. I need you to give it back to me."
