Sweet Valley Confidential by Francine Pascal

Ten years after their graduation from Sweet Valley High, Jessica and Elizabeth Wakefield return. The twin sisters are 27 now, grown adults, complete with adult concerns, meaning this book isn't quite meant for teens. It weaves most of the old Sweet Valley High characters into the story, and gives an update on nearly every major character from the original series. There are a lot of surprises, but if you read and enjoyed the earlier series and always wondered what happened . . . here you go. -Erin S.