It's Mikey

"I don't have a body," the ghostly girl said. "So I'll just need to get a new one!" With that, she floated through Jon's door. She was gone before he could say another word. And now, someone was about to be possessed by her. A moment later, his bedroom door opened, revealing his little brother Mikey. He must have just gotten home from school, because he still had his schoolbag over his shoulder. "Mikey?" Jon asked. But it wasn't Mikey. Not anymore. It was the ghost. "Give me that stone!" he yelled, lurching at Jon.