Griz was right. The little urchin knew every mouse trail in the Sanctum—and there were many. In one of them, I had to get down on my hands and knees to crawl through. As we walked through another, I heard a distant roar.

“What’s that?” I whispered.

“We don’t want to go that way,” she said. “That tunnel leads to the bottom of the cliffs. Nothing there but the river, lots of wet rock, and bridge gears.” She led me down an opposite path, but I made note of the way. A path that led to the bridge, even though it was impossible to raise, was something I wanted to explore.

We finally emerged into a wider cavelike tunnel, and the familiar sweet smell of oil and dusty air welcomed us. I thought at this hour it would be empty, but we heard footsteps. We hid in the shadows, and when the dark-robed men shuffled past, we followed a safe distance behind. I understood now why it was called Ghoul Caves. The walls weren’t just made of broken ruins. Human bones and skulls lined the path, a thousand Ancients holding up the Sanctum, poised to whisper their secrets—ones Aster didn’t want to hear. When she saw them and gasped, I clapped my hand over her mouth and nodded reassurance. “They can’t hurt you,” I said, though I wasn’t so sure myself. Their empty-socket stares followed our steps.

The narrow path led in a steep downward slope to an enormous room, one that bore the art and architecture of another time, and I guessed that it might date all the way back to the Ancients. Deep in the ground, and perhaps sealed away for centuries, it was in remarkably good repair, and so were its contents. It wasn’t just any room but a roomful of books that would make the Royal Scholar pale—it dwarfed all his libraries put together. At the far end, I saw the robed men sorting books into stacks and occasionally tossing one into a mountain of discards. Similar mountains were scattered throughout the room. Partially hidden from view was a wide curved opening to another room beyond this one. Light poured out of it, bright and golden. I could see at least one figure inside hunched over a table writing on ledgers. This was an extensive organized effort. Passing shadows flickered across the floor. There were others in that room too. Those who sorted the books in the outside room occasionally took one in to them. I desperately wanted to see what they were doing and what the books were that they studied.

“You want one?” Aster whispered.

“No,” I said. “They might see us.”

“Not me,” she answered, showing off how low she was able to crouch. “And it ain’t really stealing, because they burn those piles in the kitchen ovens.”

They burned them? I thought about the two books I had stolen from the Scholar, both of their leather covers scorched with fire. Before I could stop her, Aster darted out, quiet as a shadow, and snatched a small book from the discards. When she ran back, her little chest heaved with excitement, and she proudly handed me her prize. It was bound differently from any books I had ever seen, razor straight and tight, and I didn’t recognize the language. If it was some form of Vendan, it was even older than the Song of Venda I had translated. That’s when I knew what they were doing. They were translating ancient languages, which explained why the services of skilled scholars were needed. I knew of three other kingdoms besides Morrighan that had a stable of scholars with any measurable skills—Gastineux, my mother’s homeland; Turquoi Tra, which was home to mystic monks; and Dalbreck.

Since they had discarded this book, I knew it wasn’t important to them, but at least I knew now what their purpose here was—deciphering a saved tomb of books, the lost books of the Ancients. For a society where few of its people even read, this was an odd scholarly activity. My curiosity burned, but I fought the urge to confront and question them because it would reveal my nighttime wanderings and put Aster at risk as well. I tucked the book under my arm and nudged her toward the pathway of skulls, and we hurried back to my room.

When we closed the door behind us, she giggled nervously at our adventure together. She asked if I could read the book to her, and I told her no, it was in a tongue I didn’t understand.

“What about those?” she asked.

I looked to where she pointed. Lying neatly side by side on my bed were the books I had stolen from the Royal Scholar. I hadn’t placed them there. I whirled, looking around the room for an intruder. There was no one. Who would enter my room and lay them out like that?

“Aster,” I said sternly, “are you playing games with me? Did you put them there before we left?”

But with one look at her anxious expression, I knew it wasn’t her. I shook my head so she wouldn’t worry. “Never mind. I forgot that I left them there. Come on,” I said as I gathered the books up and set them on the chest. “Let’s get ready for bed.”

She had brought nothing but the clothes on her back, so I dug around for another of Kaden’s warm shirts. It fell to her ankles, and she hugged the soft fabric to her skin. When I brushed my hair, I saw her rub her short scruff dreamily as if imagining it long.

“All that hair must keep your neck and shoulders nice and warm,” she said.

“I suppose it does, but I have something far prettier that might keep you warm. Would you like to see it?”

She nodded enthusiastically, and I pulled the blue scarf Reena had given me from my saddlebag. I shook out the folds, and the silver beads jingled. I placed it over her head and wrapped the ends around her neck. “There,” I said, “a beautiful vagabond princess. It’s yours, Aster.”