"This is going to be fun." - Chuck

Indeed, Mr. Bass. Indeed. The "Memoirs Of An Invisible Dan" hit the fan next Monday, and in this sneak preview of the all-new episode of Gossip Girl, we see what that means for a variety of characters.

Spoiler alert: Expect the unexpected.

According to executive producer Josh Safran and writer Amy Harris, the book paints characters in a way one wouldn't necessarily see coming, given Dan's relationships with them in real life.

We know from this week's Gossip Girl promo what he writes about Blair, and how he took creative liberties with Nate. But how is Serena portrayed in the pages of Inside? Below lies a major hint. Watch this two-and-half minute preview of Monday's episode, the fourth of this season, and share your comments ...

Steve Marsi is the Managing Editor of TV Fanatic. Follow him on Google+ or email him here.