Mary-Kate and Ashley pretend to be older so they can get invited to a Weekend Party. But is hanging out with an older group of kids worth living so many lies? The series that began as a trilogy celebrating Mary-Kate & Ashley's 16th birthday is now a staple in tween and teen girls' libraries. Because Mary-Kate and Ashley remain forever 16 in these books, aspiring younger readers get to anticipate and experience this magical time of life again and again...