Casey wondered about it for the rest of the day but didn't see or hear from his identical twin until Candy was playing with him after dinner. He was trying to close his eyes so he didn't have to see what she was doing when he heard that voice again.
"Dummy. I told you to pretend that it was a story. Don't close your eyes; open them and pretend you aren't even here."
How was he supposed to do that? He opened them and saw the crazed grin on Candy's face as blood dripped off her knife, barely holding back a shudder. If he moved, it would hurt worse.
Casey looked up and saw someone that looked just like him floating above his head. He was about to ask what they were doing up there before remembering that his sister would be able to hear him. But his identical twin seemed to know what he was thinking anyway.