: Blair is convinced her mother, Eleanor, is hiding a major secret from her—later revealed to be a potential pregnancy.
In Gossip Girl , Season 3, Episode 11, titled "," is widely considered the show's most iconic Thanksgiving special. Set against a perfectly decorated Upper East Side dinner, the episode is a masterclass in holiday tension, featuring a "bountiful harvest" of long-hidden secrets and public confrontations. Key Plot Points [S3E11] Thanksgiving
: A letter from Serena's father, which Lily accidentally left in her coat pocket, is discovered by Maureen, threatening to expose Lily's own past secrets. : Blair is convinced her mother, Eleanor, is