My name is Sarah, and until I was 15, I... had never gone to school. It might be hard to believe, I know, but I have a pretty unique family. My parents were zoologists, and they studied wild animals in Antarctica. So, for as long as I could remember, I had always been surrounded by endless snow. Lemmings and seals had become my friends, and my mother and father were my teachers, who taught me in their free time.