“Thank you,” I said, leaning into the shelves on the left side of the room. “Look, Georgina has a hardback Betsy-Tacy anthology! She really didn’t throw anything away.”

“I wonder why she kept all her childhood books up here,” Nick said, hopping down and scooting the chair back to its home.

“Who knows why Georgina kept anything anywhere. Oh, The Bobbsey Twins on a Houseboat!” I shrieked, ripping that off the shelf. “This is great. When we were kids, all my parents’ friends gave us Bobbsey Twins books because, well, I guess that’s the joke you make when someone has twins. They’re pretty bad and I love them.” I hugged the book to me. “Thank you, Georgina. Hoarding wins again.”

Nick flopped back down on his pillows. “Promise me you won’t carry any of these downstairs by yourself,” he said. “Those stairs are treacherous enough without a pair of precious eggplants, or whatever size the babies are now.”

“Cauliflower, I think.” I knelt and opened the cupboard under the shelves. “Wait, I’ve done this one. It’s where I found her diaries.” I pursed my lips. “There’s still some other random shit in here, though.”

I reached in—the cupboard was deep; my arm went in up to my shoulder and I still barely grazed the back—and scooped out the various books and loose papers still rustling around in there. A complimentary 1984 wall calendar from the Royal Ballet had gotten caught on the shelf’s back corner, so I leaned in until I could grab it with the tips of my fingers and ease it out. As I withdrew my hand, I grazed it on something sharp.

“Ow!” I said, jerking my hand to my mouth and sucking on the wounded knuckle of my thumb. Something had poked me.

“You okay?” Nick asked.

“Just a scrape. There’s something back there. I can’t…” I reached in more carefully and felt along the sides of the cupboard until my fingers hit a metal circle on the right-hand wall.

“Is your tetanus shot up to date?” Nick wondered.

I ignored him as I felt the contours of whatever had bit me. It had a jagged ridge in the middle.

A keyhole.

I sat back hard and looked up at the bookshelves, which were designed to look like three separate cases side by side, but were actually a built-in single wall unit. Each section had multiple shelves up top, and the lower right and left sides had cupboards, while the middle section between was merely decorative.

Or so I’d thought.

I turned around frantically until I saw the pillow I’d been using as a treasure chest. My hands shook as I unzipped it and fished around for the letters. The key was still there, folded up tight inside them.

“Nick,” I said, holding it up. “What if…?”

He squinted at it and then brightened. I reached inside the cabinet and felt around until I could position the key against the lock. The key slid in and let me turn it with a neat click.