The Cloud: Should They Follow The Cloud?

"That cloud," the girl in nerdy clothes said. "It surrounded you for a moment, just like those girls in the food court." "Girls? Cloud? What are you talking about?" Molly asked. She looked around. "How did I get here? I was walking home after babysitting for Melony ..." She trailed off, trying to remember. The four teens looked at each other, exchanging odd glances. They all saw the same thing. So how come Molly didn't see it? Or *remember* seeing it? "There it goes," Biff said, pointing at the cloud. It was all the way on the other side of the mall, near the entrance, but they could still spot it. "Uh ... should we follow it?"