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As summer begins, Iris is finding that life can be quite tricky. Her mother has packed up and left to go travelling. Her father isn't coping too well with having been abandoned by his wife. Her brother, Sam, is in trouble at school and in danger of going off the rails generally. And Iris herself is feeling overtaken by her best friend, who is obsessed with boys and fashion while Iris prefers to run wild in the woods as she's always done.