Book 1: Best Friends. Twins Jessica and Elizabeth have always been inseparable, but starting middle school means a chance for new beginnings! What will happen when the twins realize they might not be as alike as they thought? Book 2: Teacher's Pet. Jessica knows she’s the better dancer-but their dance teacher only seems to have eyes for Elizabeth! Even worse, Elizabeth refuses to believe that their teacher is favoring her! Book Three: Choosing Sides. No matter what Elizabeth does she can't stop her best friend, Amy Sutton, from trying out for the Unicorn Club's cheering squad. When it is revealed that Jessica and the rest of the Unicorns don't want Amy, what should Elizabeth do? Book Four: The Haunted House. The buzz at Sweet Valley Middle School is all about Nora Mercandy, the new girl living in the town's infamous haunted house. Jessica is convinced there's something witchy about her, but Elizabeth thinks there's more to the story.