Rhyme knows that this summer is going to be a bust. All of her friends are on vacation or at dance camp—without her—and T. K., her maybe-boyfriend, is away all summer in LA. Rhyme is stuck helping the Attaway librarian prepare for the County Fair and studying for the important "Test Test," which she failed the first time, so that she can move up to the next grade. Such a boring summer. But when an enigmatic set of twins rolls into town in an old station wagon, looking for answers and acceptance, Rhyme gets caught up in a decades-old mystery of love, intrigue, and danger. Will Rhyme be able to help the twins, proving once and for all what she is capable of? Her friends are never going to believe this.