The Other Sister    by S. T. Underdahl Order:  USA  Can Flux, 2007 (2007) Paperback     Reviewed by Lyn Seippel Fifteen-year-old Josey Muller is the only daughter of Anne and Bill Muller. Or at least she thinks she is until her mother springs the news that she has an older sister. Audrey Merriday is ten years older than Josey and was born while her mom and dad were in high school. Their parents persuaded them to give their baby up for adoption. Audrey has now contacted her mother through a social worker and her mother is more excited and happy than Josey has ever seen her. Suddenly high school, studying, and the upcoming Hollidazzle dance all take a backseat to the complexity of welcoming a sister into her family. While Josey is adjusting to no longer being the only daughter, her sister is adjusting to having found not only her birth mother, but both of her birth parents and three siblings. Josey is working on a Nature vs. Nurture paper for her psychology class that is sure to deserve an 'A' now that she can compare her personality to her sister's. Underdahl's characters are rich and supportive of one another in this quiet book of changing family relationships. Note: Opinions expressed in reviews and articles on this site are those of the author(s) and not necessarily those of BookLoons. Find more Teens books on our Shelves or in our book Reviews