|summary=Delightful if dangerous and disturbing dystopian fiction that is a pleasure to read and a great start to what promises to be an exciting and energising series.
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|aznus=0007476817
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Addie and Eva are 15 year olds living somewhere in America. They have a mother, a father and a younger brother. But Addie and Eva are not sisters, or twins, in the usual sense. They are two minds who share one body, and they are in trouble.