The last dress from Paris

"The secret is hidden within a collection of Dior dresses ... London, 2017. There's no one Lucille loves more than her grandmother (not even her mother, she's ashamed to say). So when her beloved Granny Sylvie asks Lucille to help secure the return of something that is precious to her, she's happy to help. The next thing she knows, Lucille is on a train to Paris, tasked with retrieving a priceless Dior dress. But not everything is as it seems, an...