The Twin Dilemma — Carolyn Keene

When a top fashion model disappears shortly before a benefit fashion show, Nancy's aunt asks her to fill in and model the beautiful designer clothes. Then the clothes disappear too -- and Nancy is hot on the trail of another exciting mystery.

As she rushes through New York's famous Garment District, Nancy must compete with an investigative reporter who is determined that he will figure out this mystery first! Can Nancy get back from the wild goose chase she is sent on in time to solve the case--and to rescue herself and her friends from impending danger?