COMPLINE
In which the Aedificium is entered, a mysterious visitor is discovered, a secret message with necromantic signs is found, and also a book is found, but then promptly vanishes, to be sought through many subsequent chapters; nor is the theft of William’s precious lenses the last of the vicissitudes.

The supper was joyless and silent. It had been just over twelve ours since the discovery of Venantius’s co r se. All the others stole glimpses at his empty place at table. When it was the hour for compline, the procession that marched into the choir seemed a funeral cortège. We followed the office standing in the nave and keeping an eye on the third chapel. The light was scant, and when we saw Malachi emerge from the darkness to reach his stall, we could not tell exactly where he had come from. We moved into the shadows, hiding in the side nave, so that no one would see us stay behind when the office was over. Under my scapular I had the lamp I had purloined in the kitchen during supper. We would light it later at the great bronze tripod that burned all night. I had procured a new wick and ample oil. We would have light for a long time.
I was too excited about our imminent venture to pay attention to the service, which ended almost without my noticing. The monks lowered their cowls over their faces and slowly filed out, to go to their cells. The church remained deserted, illuminated by the glow of the tripod.
“Now,” William said, “to work.”
We approached the third chapel. The base of the altar was really like an ossarium, a series of skulls with deep hollow eyesockets, which filled those who looked at them with terror, set on a pile of what, in the admirable relief, appeared to be tibias. William repeated in a low voice the words he had heard from Alinardo (fourth skull on the right, press the eyes). He stuck his fingers into the sockets of that fleshless face, and at once we heard a kind of hoarse creak. The altar moved, turning on a hidden pivot, allowing a glimpse of a dark aperture. As I shed light on it with my raised lamp, we made out some damp steps. We decided to go down them, after debating whether to close off the passage again behind us. Better not, William said; we did not know whether we would be able to reopen it afterward. And as for the risk of being discovered, if anyone came at that hour to operate the same mechanism, that meant he knew how to enter, and a closed passage would not deter him.
We descended perhaps a dozen steps and came into a corridor on whose sides there were some horizontal niches, such as I was later to see in many catacombs. But now I was entering an ossarium for the first time, and I was very much afraid. The monks’ bones had been collected there over the centuries, dug from the earth and piled in the niches with no attempt to recompose the forms of their bodies. Some niches had only tiny bones, others only skulls, neatly arranged in a kind of pyramid, so that one would not roll over another; and it was a truly terrifying sight, especially in the play of shadows the lamp created as we walked on. In one niche I saw only hands, many hands, now irrevocably interlaced in a tangle of dead fingers. I let out a cry in that place of the dead, for a moment sensing some presence above, a squeaking, a rapid movement in the dark.
“Mice,” William said, to reassure me.
“What are mice doing here?”
“Passing through, like us: because the ossarium leads to the Aedificium, and then to the kitchen. And to the tasty books of the library. And now you understand why Malachi’s face is so austere. His duties oblige him to come through here twice daily, morning and evening. Truly he has nothing to laugh about.”
“But why doesn’t the Gospel ever say that Christ laughed?” I asked, for no good reason. “Is Jorge right?”
“Legions of scholars have wondered whether Christ laughed. The question doesn’t interest me much. I believe he never laughed, because, omniscient as the son of God had to be, he knew how we Christians would behave. But here we are.”
And, in fact, the corridor was ending, thank God; new steps began. After climbing them, we would have only to push an ironclad wooden door and we would find ourselves behind the fireplace of the kitchen, just below the circular staircase leading to the scriptorium. As we went up, we thought we heard a noise above us.
We remained a moment in silence; then I said, “It’s impossible. No one came in before us. ...”
“Assuming this is the only way into the Aedificium. In centuries past this was a fortress, and it must have more secret entrances than we know of. We’ll go up slowly. But we have little choice. If we put out the light we can’t see where we are going; if we leave it burning we. give anyone upstairs the alarm. Our only hope is that if someone really is there, he will be afraid of us.”
We reached the scriptorium, emerging from the south tower. Venantius’s desk was directly opposite. The room was so vast that, as we moved, we illuminated only a few yards of wall at a time. We hoped no one was in the court, to see the light through the windows. The desk appeared to be in order, but William bent at once to examine the pages on the shelf below, and he cried out in dismay.
“Is something missing?” I asked.
“Today I saw two books here, one of them in Greek. And that’s the one missing. Somebody has taken it, and in great haste, because one page fell on the floor here.”
“But the desk was watched. …”
“Of course. Perhaps somebody grabbed it just a short while ago. Perhaps he’s still here.” He turned toward the shadows and his voice echoed among the columns. “If you are here, beware!” It seemed to me a good idea as William had said before, it is always better when the person who frightens us is also afraid of us.
William set down the page he had found under the desk and bent his face toward it. He asked me for more light. I held the lamp closer and saw a page, the first half of it blank, the second covered with tiny characters whose origin I recognized with some difficulty.
“Is it Greek?” I asked.
“Yes, but I don’t understand clearly.” He took his lenses from his habit and set them firmly astride his nose, then bent his head again.
“It’s Greek, written in a very fine hand, and yet in a disorderly way. Even with my lenses I have trouble reading it. I need still more light. Come closer. ...”
He had picked up the sheet of parchment, holding it to his face; and instead of stepping behind him and holding the lamp high over his head, I foolishly stood directly in front of him. He asked me to move aside, and as I did, I grazed the back of the page with the flame. William pushed me away, asking me whether I wanted to burn the manuscript for him. Then he cried out. I saw clearly that some vague signs, in a yellow?-brown color, had appeared on the upper part of the page. William made me give him the lamp and moved it behind the page, holding the flame fairly close to the surface of the parchment, which he heated without setting it afire. Slowly, as if an invisible hand were writing “Mane, Tekel, Peres,” I saw some marks emerge one by one on the white side of the sheet as William moved the lamp, and as the smoke that rose from the top of the flame blackened the recto; the marks did not resemble those of any alphabet, except that of nec?romancers.
“Fantastic!” William said. “More and more interesting!” He looked around. “But it would be better not to expose this discovery to the tricks of our mysterious companion, if he is still here. ...” He took off his lenses, set them on the desk, then carefully rolled up the parchment and hid it inside his habit. Still amazed by this sequence of events, which were nothing if not miraculous, I was about to ask further explanations when all of a sudden a sharp sound distracted us. It came from the foot of the east stairway, leading to the library.
“Our man is there! After him!” William shouted, and we flung ourselves in that direction, he moving faster, I more slowly, for I was carrying the lamp. I heard the clatter of someone stumbling and falling. I ran, and found William at the foot of the steps, observing a heavy volume, its binding reinforced with metal studs. At that same moment we heard another noise, in the direction from which we had come. “Fool that I am!” William cried. “Hurry! To Venantius’s desk!”
I understood: somebody, from the shadows behind us, had thrown the volume to send us far away.
Once again William was faster than I and reached the desk first. Following him, I glimpsed among the columns a fleeing shadow, taking the stairway of the west tower.
Seized with warlike ardor, I thrust the lamp into William’s hand and dashed blindly off toward the stairs where the fugitive had descended. At that moment I felt like a soldier of Christ fighting all the legions of hell, and I burned with the desire to lay my hands on the stranger, to turn him over to my master. I tumbled down almost the whole stairway, tripping over the hem of my habit (that was the only moment of my life, I swear, when I regretted having entered a monastic order!); but at that same instant—and it was the thought of an instant—I co............