Read Chapter 16: The Poison Identified

The tavern’s reek of stale ale and woodsmoke clung to Thomas’s robe like a penitent’s shame. He had slipped out before the miller could notice him, ducking through the kitchen door and into the grey drizzle of the village lane. The belladonna seeds sat heavy in his pouch—small, black, patient as sin. Anselm’s letter crackled beneath his tunic with every step.

The abbey walls loomed ahead, and Thomas’s stomach tightened. The abbot had confined him to his cell. If he were caught now, it would not be a few days of prayer and bread and water. It would be the chapter house, a public trial of his obedience, and perhaps the loss of his right to copy manuscripts—his only true vocation.

He slipped through the postern gate, the one the lay brothers used for deliveries of firewood, and padded through the cloister’s shadowed walk. No one called out. The bells had not yet rung for None, and the brothers would be at their labors or at rest. Thomas kept his eyes low and his steps even, a man with a purpose, not a fugitive.

His cell was undisturbed. He had expected the lock to be changed, or a new seal upon the door, but the abbot’s confidence in his brothers’ obedience was total. Thomas barred the door from the inside, drew the thin curtains across the narrow window, and lit the stub of tallow he kept for late-night reading.

He laid out everything upon his cot: Anselm’s letter, the merchant’s packet of belladonna seeds, and the few shreds of root he had taken from Anselm’s hidden stash. The root was the key. He had smelled it when he first found it—sharp, earthy, with a sickly sweetness underneath. Belladonna was known to him by description: the purple berries, the black seeds, the dilation of the pupils and the maddened speech that preceded death. But this root was something else.

Thomas paused. He had seen such a root before, in the margins of a herbal he had copied as a novice. The illustrator had drawn it with a serpent coiled around its base, a warning. He closed his eyes and summoned the page: *Dracunculus*—dragon’s wort—a plant that grew in damp places, whose root, when powdered and steeped in wine, could bring on a state so deep and cold that physicians might pronounce a man dead. The pulse slowed to a thread. The breath came shallow and infrequent. A man in that state would not wake for three days, and when he woke, if he woke, his wits might never again be sound.

But there was a crueler property, one the herbal had noted in a cramped hand added later: if the dose was repeated, or if it was mixed with other agents, the sleep did not end in waking. The heart simply forgot its rhythm. The man died in his sleep, days after seeming to recover.

Thomas picked up the shred of root and sniffed it again. Yes. The same sharp sweetness. Anselm had not merely collected rare plants for study. He had collected the instruments of his own destruction—or the tools of a murderer.

The letter confirmed it. Anselm’s hand was neat, almost too deliberate, as if he had known the page might be his last testament. *The ink is poisoned,* he had written. *Not the parchment, not the words, but the ink itself. I have seen Brother William’s hands trembling at Matins, and Brother James wipes his brow with the same cloth three times in an hour. They are not ill. They are afraid.*

Thomas turned the letter over. On the reverse, in a smaller hand, Anselm had added a single line: *I will go to the steward with what I know. The baron’s nephew will not have this land, nor the souls of these brothers, for his inheritance.*

So Anselm had gone to confront the steward. And no one had seen him since.

Thomas pressed his palms to his eyes. The mathematics of the plot were becoming clear. Someone—the cellarer, Brother John, perhaps—had supplied the ink. The ink was poisoned. The brothers who wrote with it, who copied the abbey’s charters and letters, would sicken and die or fall into fits that looked like divine punishment. The abbey would be seen as cursed. The bishop might intervene. The land would be sold cheap, perhaps to the baron, who would then confirm his nephew Godfrey as his heir. The soul of the abbey would be sacrificed for a meadow.

But why, then, had Brother William and James been meeting with the steward in secret? Anselm’s letter suggested they had been negotiating to sell the rights themselves, for their own profit. Perhaps they had cut a different bargain than Godfrey intended. Perhaps Anselm had discovered not one plot, but two—and both had ended with him in a grave or a ditch.

Thomas picked up the belladonna seeds. The merchant had said Anselm left them as proof that he was the right person to learn the truth. But proof of what? That Anselm knew poisons? That he could identify them? Or that he had been poisoned himself?

The tallow guttered. Thomas looked at the seeds more closely, rolling a single black pellet between his thumb and forefinger. They were unremarkable. Deadly, yes, but unremarkable. Then he noticed something he had missed in the dim light of the tavern: the seeds were not in a plain pouch. They had been wrapped in a square of vellum, and on that vellum, in faint brown ink, was a small drawing—a serpent twisted around a staff.

The symbol of the physician. The Rod of Asclepius.

Thomas frowned. Anselm had drawn it, he reasoned, as a mark of his own pursuit of healing knowledge. Or—Thomas turned the vellum over—there was writing on the other side, in a cramped hand that was not Anselm’s. Three words: *Ask the cellarer.*

Thomas’s breath caught. John. The cellarer was the man who purchased the ink, who kept it in the storeroom, who doled it out to the scribes. Thomas had supposed John was merely complicit, a weak man who turned a blind eye. But the vellum suggested Anselm had suspected him.

Why had Anselm not written this in his letter? Perhaps because the letter had been interrupted. Perhaps because he had meant to confront John and had not survived the conversation.

Thomas rose and crossed to his small washing basin. He poured the belladonna seeds into the wooden cup he kept for ablutions, and then, on impulse, he ground three of the seeds into a paste with the back of his spoon. He did not know why he did it. A physician’s instinct. A scholar’s curiosity. He mixed the paste with the dregs of his wine and set the cup on the sill.

He looked at the cup for a long moment. If he were to prove the poison, he would need to know its character. But he could not test it on a living soul.

Then he remembered the library cat.

It was a scraggly creature that slept in the dortoir, tolerated by the brothers because it hunted mice among the stored grain. Thomas had seen it that very morning, blinking at him from the shelves. He did not want to poison a cat. But he could not shake the image of Brother Anselm’s letter, the confession of a man who had gone to speak his truth and never returned.

He lifted the cup and carried it to the window. The cat was not there. But as he set the cup down on the sill, he saw something else: a fresh footprint in the damp soil beneath the window. The print was small and well-shod, with a pointed toe. Not a farmer’s boot. Not a monk’s sandal.

A city shoe. A steward’s shoe.

Thomas stared at the print. Whoever had been watching him had come to his very window, in the shadow of the abbey wall, and had stood there long enough to leave a clear impression. Perhaps it was the same person who had taken the recipe fragment from his cell.

The cat appeared from the shadows of the ivy, its amber eyes fixed on the cup. Thomas hesitated. Then he stepped back and let the creature approach.

If the poison in the ink was such that a cat lapping at it would die slowly, over days, then the deaths at the abbey might not be murders at all—but executions, judged by a man who believed he had the right to mete out death for the sin of making a bargain he could not control.

Thomas shook his head. That made no sense. Godfrey needed the brothers alive, needed them to sign the documents the steward would bring at the feast of Saint Agnes. Dead men could not surrender a meadow.

Unless the timing had gone wrong. Unless the poison had been meant only to weaken, and it had proven too strong.

Thomas watched the cat sniff the cup. A moment later, it turned its head and licked the wine. It would know soon enough.

He returned to his cot and looked once more at Anselm’s letter. At the end, after the confession of the poisoned ink, there was a line Thomas had not fully registered before. He read it now, the chill creeping up his spine:

*The cellarer serves two masters. But the abbot serves none.*

Thomas lowered the page. If the abbot was behind this—if the mastermind was not Godfrey, but the man who had confined Thomas to his cell—then every step he had taken this day had been watched. The merchant’s testimony. The miller’s silence. The footprint beneath his window.

He glanced at the cup. The cat was licking its paw, unhurried.

Thomas would have to confront them all. But first, he needed proof that would survive the abbot’s wrath. He took the belladonna seeds from the sill and tucked them into the lining of his shoe. Then he blew out the tallow and lay back on his cot, eyes open in the darkness, listening for the sound of a step that was not a monk’s.