Only one more episode to go in Gossip Girl Season 4, and all the pieces are being put into place for the big season finale. The Thorpes attack on Bass Industries is narrowly averted, but is the stage set for an even worse loss for Chuck (Ed Westwick)? Will Blair (Leighton Meester) let the crown slip through her fingers? And most pressingly: WTF, Charlie (Kaylee DeFer)? For all those burning questions and more, read on.