carol middleton, a stay-at-home mother stumbled on to a very lucrative career. >> she had a talent for making goody bags for children's parties, and she really spun it into this internet empire. the family quickly moved up the ladder and within a couple of years they were making millions of dollars a year. hence kate was sent to some of the most expensive and prestigious schools. >> kate was 13 years old when she arrived at this conclusive school in the english countryside called down house, a school that catered to nobility and aristocracy. when she stepped on campus she was an outgoing girl who loved sports and learning, but soon that all changed. >> she became the victim of the mean girls in the school. there was malicious gossip about her background because she was one of the very few girls from a working class background attending that school. >> many say kate became miserable, shy and withdrawn, much like diana when she first went to boarding school. >> she was very shy, so i didn't really notice her. penny walker, diana's music