I Spent Four Hundred Hours Embroidering My Wedding Gown. Then I Saw It on My Sister, with My Fiancé Holding Her Champagne.

The Whitaker house sits at the top of the vineyards, a long limestone villa with a red tile roof and a terrace that looks out over forty miles of vines. A butler showed me out to the terrace.

Eleanor was sitting at a wrought-iron table under a white umbrella, with a pot of tea and a plate of lemon biscuits, and a folder of her own.

“Sit,” she said.

I sat.

“Graham tells me,” Eleanor said, pouring me tea, “that you ended your engagement in February. That you’d grown distant. That you were consumed with your work and couldn’t make room for a marriage. That your sister was a great comfort to him in his grief.” She set down the teapot. “Is that true?”

“No,” I said.

“I thought not.” She slid her folder across the table. “This is Sienna Rose Bridal’s investor presentation. Three million dollars of my family’s money. I’ve been reading it again since Monday night, when Margot Lacroix at Atelier Fontaine called my assistant and asked, very politely, whether the Whitaker family was aware that the bride on our son’s wedding order had been changed.”

I hadn’t known Margot did that. I’d give her a raise. Eleanor opened the folder to a page near the back.

It was the photograph of The Rose. My gown. Underneath, in bold, the presentation said: Signature motif: original hand-embroidered lily of the valley design by Sienna Hale. Proprietary. Brand cornerstone.

“You made this,” Eleanor said. It wasn’t a question. “I’ve seen your hands work, Juliet. At Christmas. In the guest cottage. With that lamp.” She took off her reading glasses. “I’ve never once seen your sister hold a needle.”

I opened my own folder. I laid out the sketches, the photographs, the certificate. And the photograph from the Lumière Bridal Market.

Eleanor Whitaker read every page. When she was done, she poured herself more tea.

“Will you come to the launch, Juliet?” she asked. “With your folder?”

“I am going to that launch on May second,” she said. “As the lead investor, I’m expected to say a few words.” She looked out at her vines. “I’d like you to be there, Juliet. With your folder. And your lawyer.”

“Mrs. Whitaker,” I said. “Graham is your son.”

“Yes,” she said. “And I raised him better than this.” She set down her cup. “Somebody in this family needs to remember that the Whitaker name is supposed to mean something.”

On the night of May first, the gown disappeared from the vault. Margot called me at six in the morning. She was crying.

“The code was changed, Ms. Hale. I swear it. I changed it myself, that Sunday night. But Chloe was standing behind me when I typed it.” She drew a shaky breath. “Chloe didn’t come in today. Her phone’s off. And the security camera on the back door shows her letting someone in at eleven-fifteen last night. A woman in a black hoodie. Carrying a garment bag.”

I knew who it was. I didn’t have to see the hoodie. I drove straight to the atelier.

Theo was very calm on the phone.

“Ms. Hale,” he said, “I want you to understand something. This is the best thing that could possibly have happened.”

Behind me, Odile was standing in front of the open vault, staring at the empty hanger.

“Chérie,” she said. “What are you going to do?”

“She stole my wedding gown, Theo.”

“Yes,” he said. “And tonight, she’s going to wear it. In front of three hundred people and every fashion editor in Bellmare. And call it hers.” I heard him smile. “Wear something beautiful. And bring the photographs of the lining.”

The Ashcombe Glasshouse sits on the crest of a hill above Bellmare, a Victorian conservatory of white iron and glass, three stories tall, built by a railroad baron for his wife in 1889.

That night, it glowed like a jewel box. Hundreds of white orchids hung from the iron rafters on invisible threads, so they seemed to float.

Crystal chandeliers dripped light down onto a long white runway that ran the length of the conservatory, past the old marble fountain in the center. Waiters in white jackets carried trays of champagne. A cellist played under a palm tree.

Three hundred guests in evening wear. Photographers along the runway, their cameras flashing. Fashion editors in the front row.

I walked in at eight o’clock, in a column gown of midnight-blue silk that Odile had cut for me that afternoon, with Odile on one side of me in black velvet and Theo on the other in a tuxedo and a crimson bow tie.