Margaret and Casey's scientist father works very hard. He's been spending a lot of time on plant experiments in their basement, and he doesn't like to be disturbed. But Margaret can't help but investigate when her dad starts to resemble his plants. How will she know if her dad is really her dad or a leafy green clone?Fun FactorA can't-put-it-down adventurethat plants the seed for a love of books, and motivates reluctant readers.