Best Kept Secret, the third book in the series Family Tree by Ann M. Martin, begins in the year 1977. In Princeton, Dana’s daughter seven-year old Fancie is struggling to keep her dyslexia a secret from her teachers and her family.  Even the thought of high school and college is part of the remote and unattainable future.  Events in her family life include the divorce of her parents, the cancer death of her dear Aunt Adele, and eventually a household which includes her Down Syndrome 31 year old Uncle Peter.  Francie is supported by a number of really good friends and finds herself developing her talent as a writer.  At the end of the book she marries the brother of her best friend and leads the reader onto the fourth book in the series with her daughter Georgia.  Written on a fourth grade level I would recommend this book, and the entire series, to middle school girls because of the life circumstances presented.  The storyline is somewhat predictable having read Books One and Two, but enjoyable.