Bad Best FriendBy: Rachel Vail Friendship, cliques, and middle school drama with a heavy dose of heart perfect for fans of Rebecca Stead! Niki Ames can't wait to start eighth grade, that all important year before high school. She and her best friend, Ava, have shared so many plans for the coming year. But then the unthinkable happens: at gym class pair up, Ava chooses someone else to be her partner. Niki is devastated. It's clear that Ava wants to be part of the