When her father barters enrollment in a prestigious private school in exchange for his bug-extermination services, Nikki suddenly finds her life in turmoil. At Westchester Country Day, Nikki encounters über-snobbish MacKenzie, the archetypal mean girl and her pack of “CCP”—Nikki’s acronym for the cute, cool and popular—friends. Nikki chronicles all of her new-girl angst and trepidations as well as her fledgling crush in her diary. Russell’s narrative deftly captures the winsome vulnerability of a girl perched on the cusp of teenhood. The comical sketches, executed à la Diary of a Wimpy Kid, add an element of self-deprecating humor to the tale. An abundance of up-to-the-minute pop-cultural references threatens to date this novel quickly. Nikki’s ultimate realization that she needs to be true to herself comes across as genuine rather than contrived, however, so despite its modern trappings, Nikki’s journey of self-discovery will appeal to preadolescent readers struggling to find their places in the world. (Fiction. 9-13)