sentences:  Brittany sets out to get rid of Adrien, by stealing her file from Henry's office and discovers Adrien's past.Adrien's revelation of Brittany is much more disturbing, when she discovers that Brittany's older sister used to be "queen bee" of this circle of friends and that Brittany was often treated badly by her older sister.Brittany is furious that her best friend Kelly deceived her when she overhears her explaining the situation of her missing sister to Adrien.