Eagerness made Dean's movements just a bit quicker than perhaps it was safer for them to be. He knew he should inspect each room carefully before moving to the next, but the thought of their father waiting for them somewhere in this house was getting more and more appealing. He didn't even see the Devil's trap hidden in the shadows, because if he had he would be even more convinced that this man that they were trying to find was indeed John Winchester.
Instead he went quickly to the room lit by kerosene lamps, praying that his father would be in there.
But he wasn't.
There were other rooms to check, of course, but this was feeling more and more like a trap. What was going on? Where was John?
He sighed heavily, turning to face his brother. "I swear to god, Sam, if some hellspawn is trying to impersonate him I'm going to do a hell of a lot more than shoot rocksalt at them."