"Olive believed that everything had two perfect halves-that halves were somehow essential, oats in the porridge of life." Olive thinks that best friend Mathilda Graham is her other half. However, Mathilda suddenly dumps Olive for a more popular girl. Confused and intensely lonely, Olive copes by finding friendship in an unlikely place: within herself. From there springs Pip, who is everything Olive is not: spunky, resilient, and self-assured. Through Pip, Olive learns her true worth and finds the courage to face not only her bullying ex-confidante, but also the father who had abandoned Olive before she was born.