So the thing with the red books is admittedly pretty weak, but I decided to go for it anyway. The whole mystery angle is a farce anyway, remember, the joke is that Scooby Doo is being treated like a real profession here. The central focus of the story was actually on the consequences that the depression (that's. what. it. was.) of 2008 had on my generation's sense of identity and belonging. In a sense... it made us feel like ghosts.