The door into the little room from the hallway was odd, which he didn't realize while he was staying in that room during the time he was working on the one that ended up his own bedroom. ...or while he was pulling up the carpet and taking down the paneling in this one.
When he got to the paneling behind the door ... that was when he saw the one thing that made him start to seriously think about all the things he'd found in the little room.
The...