From the bestselling author of the generation-defining series The Baby-sitters Club comes a series for a new generation!

Double TroubleTammy and Terri are real-life twins in Karen's class. Audrey thinks that is really neat. She wants to be a twin, too. And her twin is going to be Karen. Karen likes being audrey's twin at first. But then Audrey does everything just like Karen. She dresses like her, she talks like her, and she even looks like Karen! How can there be two Karens at once?