The Hinge

Priya found the boy before I did. It took her forty minutes with the 1931 census and a magnifying glass.

"Cyrus Thorncastle," she said, turning her laptop toward me. "Age eight in 1931. Ward of the household — his parents died young, his uncle Augustus took him in." She tapped the screen. "Augustus Thorncastle. Head of the family. The man who dismissed Agatha."

"And Cyrus?"

"Inherited everything in 1958. He's Sebastian's grandfather. Rosalind's too."

The line ran straight and cold through a century: the boy Agatha had tried to protect had grown up to become the man whose descendants were now trying to keep her quiet again.

We had one more chance to examine the brooch before the sale — a routine pre-auction condition check, the kind of thing I'd done a hundred times without anyone in the room caring. This time Priya's hands weren't quite steady as she lifted it from its case under the loupe light.

"Here," she said, so quietly I almost missed it. She turned the wing toward me. A hairline seam ran along the underside, invisible unless you were looking, exactly where a hinge would sit if the piece opened like a locket.

"It's not decorative," I breathed. "It's a door."

I was reaching for the seam with a wooden pick when the workroom door banged open.

"That's quite enough." Gideon Pruitt crossed the room in four strides and lifted the brooch straight out of Priya's tray before either of us could object. "Authentication's complete. The family thanks you for your diligence." He was already sliding it into a velvet pouch, already turning for the door. "It's going back into secure storage. Immediately."

"You can't just—" I started.

"I absolutely can," he said, not unkindly, which was somehow worse. "It belongs to my clients. Good evening, ladies."

The door clicked shut behind him, and the seam I'd almost opened went with it.