The magical friendship of Phoebe and her best friend, unicorn Marigold Heavenly Nostrils, is back in this second adventure of a girl and her mythical creature One year has passed since Phoebe skipped a rock across a pond, accidentally hit a unicorn in the face, and was granted a single wish mdash, which she used to make the unicorn, Marigold Heavenly Nostrils, her obligational best friend. In some ways, not much has changed. At school Phoebe still clashes with her rival-and sometimes ldquo, frenemy rdquo,-he ever-taunting and imperious Dakota. Outside of school, she still fills her free time with extra-credit homework assignments, dramatic monologues about the injustices associated with school cliques, and imaginative conspiracy theories regarding global forces like the ldquo, powerful construction paper lobby. rdquo, But unlike before, Phoebe now has a best friend to share it with mdash, someone to make her laugh and to listen to all her extravagant ideas. In this second volume of Dana Simpson's Phoebe and Her Unicorn series, titled, Unicorn on a Roll, the reader is invited on a journey into the lives of Phoebe and Marigold as they navigate the difficulties of grade school, celebrate the winter holidays, and explore their super hero/super villain personas together. Join in the fun, as Phoebe competes against Dakota for the leading role of ldquo, Lisa Ladybug rdquo, in their fourth-grade play mdash, or as she struggles.