The Twin Dilemma by Carolyn Keene

Reluctantly participating in a benefit fashion show, Nancy suddenly finds herself amidst a fraudulent manufacturing scheme and discovers a coded message leading to a family reunion. Book Details: Author: Carolyn KeeneTitle: The Twin Dilemma (Nancy Drew #63)Publisher: Grosset & DunlapPages: 178Dimensions: 7.75 x 5 x 0.75"Weight: 7.4 ozFormat: Hardcover