Emma Starkey is a spunky little girl trying hard to be charitable and virtuous. But her calculated attempts have a way of backfiring with tumultuous consequences in this poignant story of small-town life in 1920s Kansas. As Emma's cranky grandmother observes, "Even sunflowers cast shadows." Weaving through four years of Emma's engaging disasters is her chaotic friendship with a transplanted Yankee whiz kid, Margaret Drummond, whose family arrives one summer burdened with a heavy secret and a flair for the dramatic. Emma's and Margaret's brothers and sisters become friends, too, but their...