Read Chapter 12: A Prisoner's Clarity

The cell had no window, only a thin seam of light beneath the door where the corridor lantern bled through, and Thomas had measured its slow crawl across the floor three times before he gave up on marking the hour. His pallet was straw over stone, the straw damp in one corner, and the chill had settled into his bones with the patience of a cat waiting at a mouse hole.

He had his notes.

The abbot's men had taken his ink and his sharper implements—his stylus, his folding knife, the small pair of shears he used for trimming parchment—but they had left the bundle of loose folios tied with twine beneath his mattress, and Thomas had spread them across his knees like a beggar counting alms. The script was his own, cramped and hurried, filled with the observations he had gathered over the past weeks.

He read them again, slowly this time, not for new insight but for the shape of what he already knew.

*Brother Anselm. Copyist. Expert in rare plants. Kept his own garden behind the infirmary, though the abbot never approved.*

Thomas paused at that line, his finger resting on the word *plants*. He had written it almost as an afterthought, a scrap of character detail he had not thought worthy of fuller examination. But Anselm had been more than a copyist. He had been the abbey's quiet authority on herbs and simples, consulted by the infirmarian when the usual remedies failed. He had known which roots slowed the heart and which leaves eased a fever.

And he had known enough to question the parchment's provenance.

Thomas flipped through the pages until he found the other reference. *Quarrel with Brother William over manuscript—nature unknown. Heard from Andrew, who heard from the novices' dormitory gossip.*

Brother William. The abbey's oldest copyist, his hands twisted with age, his eyes failing to the point that he held every page within two inches of his nose. William had been at Saint Vitus for nearly fifty years, longer than any brother save the abbot himself. He had trained Anselm in the scriptorium when Anselm was still a novice with ink-stained fingers and an impatient spirit.

They had quarreled. Andrew had been vague on the subject—something about a manuscript of Galen, a marginal note William had called a corruption—but Thomas had heard the echo of it in the scriptorium himself, weeks before Anselm vanished. William had raised his voice, rare for him, and Anselm had responded in a tone that bordered on disrespect.

*The Galen codex,* Thomas thought. He turned to another page, where he had listed the manuscripts present in the scriptorium during the month of Anselm's disappearance. The Galen volume, a translation of the Greek physician's works on humors and poisons, had been laid out for copying on the same bench Anselm used.

Poisons.

The word sat on the page, and Thomas stared at it until the letters blurred and reformed. Anselm had been copying a text on poisons. Anselm knew rare plants. And Anselm had been the one to identify the tainted parchment, when the first brother died after licking his finger to turn a page.

*He knew,* Thomas wrote in his mind, filling the margins of his memory. *He knew what was on that parchment, and he kept the knowledge from me.*

But why? Why hide it, if he had discovered the crime? Why not go to the abbot, or the prior, or anyone with authority?

Unless he did go to someone.

Thomas set the folios aside and pressed the heels of his hands against his eyes until stars burst behind his lids. The abbot's face swam up in the darkness—the announcement of the bell donation, his voice steady and loud, but his hands trembling at his sides. The abbot knew something. Thomas had seen the fear, the way His Grace's eyes had darted to the door when Sir Godfrey's name was spoken.

And Mark. Brother Mark, with his too-easy smile and his wine debts paid in parchment. Mark, who had sworn the poisoned sheets were destroyed. Mark, who had come to Thomas's cell that night with an implied knowledge of the theft and a warning of something to come.

The cell was cold, but Thomas's thoughts ran colder.

He stood and paced the length of the room—eight steps from the door to the far wall, four steps across. The stone floor was uneven, worn smooth in the center by the feet of some long-dead brother who had worn this same circuit. Thomas found himself matching the pattern of those old footsteps, letting his mind follow the groove.

Anselm had quarreled with William. That was the knot he kept returning to, the one thread that seemed to lead nowhere. What could an old copyist have said that would set Anselm against him? What could a manuscript of Galen have to do with—

Thomas stopped mid-step.

The annotation. The deed he had found beneath the chapel floor, the marginal note that had nullified the abbey's claim to the river meadow. It had been written in a hand that was not Anselm's, not any hand Thomas recognized from the scriptorium. But the ink had contained copper residue, and copper residue was not uncommon in certain preparations. Some inks used copper to darken the pigment, to give it body, to make it bite deeper into the parchment.

But some inks used copper for a different purpose.

*The Galen codex,* he thought again. He had not read it himself—his work had been on the medical texts, the practical manuals, the herbals—but he had seen the book, had handled it when it first arrived in the scriptorium. It had contained a chapter on the preparation of inks and their potential for harm. Some pigments, mixed with the wrong binders, could carry poison into the bloodstream through the smallest cut. A parchment edge was enough. A paper cut, a licked finger, a mouth touched with stained hands.

Someone in the scriptorium had read that chapter. Someone had understood what it meant.

William was old and his hands were twisted, but William had been the first to handle the Galen codex when it entered the abbey. William had catalogued it, had written the shelf list, had spent three days in the library with the volume open before him, muttering to himself about the irregularities in the Greek.

Why would Anselm quarrel with him?

Unless Anselm had discovered what William was doing with that knowledge.

Thomas sat down on the edge of his pallet, the straw rustling beneath him. Brother William, who could barely see the page before him, who held every manuscript inches from his face. William, whose trembling hands could not have produced the neat, confident script of the annotation on the deed.

But William could have told someone else what to write.

Thomas closed his eyes and tried to picture it: William in the scriptorium, bent over a desk, his quill moving slowly across the page. But no—William's hands no longer allowed such work. He had been retired from copying years ago. He spent his days in the library, cataloguing and repairing, his duties reduced to those that required more knowledge than steadiness.

He had access. He had knowledge. And he had quarreled with Anselm over a manuscript that contained the very information needed to craft a deadly ink.

Thomas opened his eyes and began to pace again, faster now, his thoughts racing ahead of his feet.

The abbot had confined him to his cell for theft. That was the official accusation, the crime of taking something that did not belong to him. The deed lay hidden in his sleeve even now, pressed into the wool of his habit, a constant weight against his arm. He had not surrendered it, and the abbot had not asked. His Grace had spoken of stolen relics, of disrupted order, of the need for penitence and reflection.

But the abbot had not asked what Thomas had taken.

And that was the most telling detail of all. The abbot did not know what Thomas had found. Or, if he knew, he did not want it to become a matter of public record. Either way, Thomas's imprisonment was not about theft. It was about silence.

*Brother Mark knows,* Thomas thought. *He knows I took the ink, and he knows what it was used for. He will tell the abbot whatever story serves him best.*

And the abbot, frightened, would believe it.

Thomas stopped pacing and looked at the door. It was oak, banded with iron, locked from the outside. The lock was simple, a bolt rather than a key—he had heard the scrape of it when the novice brought his bread and water. The hinges were on the outside, set into the frame. There was no way to open it from within.

But the abbey was old, older than the order that had claimed it, and Thomas had spent years in its library reading about its construction. The building had been a fortress once, a lord's stronghold converted to religious use when the lord's line died out and the church purchased the lands. Fortresses had secrets.

They had passages.

Thomas knelt and pressed his hands flat against the floor, feeling along the stones near the wall. The cell was in the oldest part of the abbey, its stone darker and rougher than the dressed blocks of the newer construction. One wall was shared with the corridor. Another bordered the chapel's vestry. The third was the exterior wall, thick enough to withstand a siege.

And there, near the corner where the exterior wall met the partition, Thomas felt it: a seam in the stone, cooler to the touch than the rest, with a line of mortar that did not quite match the pattern around it.

He pried at the edge with his fingernails, then with the wooden end of his broken stylus—the one implement they had overlooked, snapped in two and tossed back to him as a mark of contempt. The mortar was old, crumbly, softened by years of damp. It gave way in flakes, and Thomas worked at the seam until he could see the dark gap behind it.

The passage was narrow, barely wider than his shoulders, and it smelled of earth and rust and something sweet, like rotting flowers. He could not see its end. He did not need to. The library had told him where such passages led: to the chapel, to the sacristy, to the old well in the courtyard. Escape routes, for the lord and his family.

And, Thomas suspected, to somewhere closer.

He pulled his head out of the gap and sat back, brushing the mortar dust from his habit. He should wait. He should think. He should not act on the impulse of a man who had been too long confined with his own thoughts.

But the thoughts were arranging themselves in his mind like soldiers on a battlefield, and they all pointed to the same conclusion. Anselm had known about the ink. Anselm had quarreled with William. Anselm had planned to travel to the merchant who supplied the poisoned parchment. And then Anselm had vanished, leaving behind only questions and a fragment of a recipe hidden in his cell.

William was still alive. William was still in the abbey. And William would not speak unless Thomas made him.

Thomas looked at the gap in the wall, then at the door, then at the gap again.

The answer lay in one direction only, and it was not the locked door.