Freaky Tuesday — Melissa J. Morgan

Brynn's just transferred to a brand-new school in a town close by. A town in Bizarro World, that is, where academic excellence is the fast track to popularity and Candace -- yes, quiet, seemingly insecure Candace -- is the reigning queen bee. Brynn's not sure how she'll ever fit in to this parallel universe, until one day she notices Candace crumbling under the weight of some serious self-imposed stress. So Brynn takes Candace under her wing and teaches her the fine art of chilling out before she turns into a complete basket case at the tender age of thirteen.