Sam had been shoved up against the wall as well. When the force holding him there suddenly disappeared, he grabbed his gun and lifted it, aiming at the spot where the ghost had materialized.
"Okay. Apparently screaming works," he said with a small, slightly apologetic smile.
"So now we know what we're dealing with for sure. Time to figure out who it is and burn the bones."
The statement was more for Dinah's benefit than anyone else's, because he was pretty sure that he and Dean were on the same page here. They usually were when it came to hunts like this.