Chapter 44: The Cartulary of Frozen Arithmetic

The dawn came grey and bitter over the Alps, and Aldric woke to the smell of snow and the weight of a decision he had not yet made.

He lay still in the narrow cot of the hospice, listening to the wind worry at the shutters. The writ of immunity was still tucked against his chest, a stiff rectangle of parchment that had grown warm with his body heat. He had not read it again since Hildegard had given it to him. He did not need to. He knew every word, every seal, every carefully chosen phrase that promised him freedom if—and only if—he delivered the coronation that Charlemagne desired.

The arithmetic was simple. Too simple.

He rose and dressed in silence, his breath misting in the cold air. Gerold was already awake, seated by the hearth with a whetstone and a blade that needed no sharpening. The Saxon looked up as Aldric approached, his scarred face unreadable.

“You slept,” Gerold said. It was not a question.

“I dreamt,” Aldric corrected. “That is not the same thing.”

Gerold grunted. “In Saxony, we say a man who dreams of the future is either a prophet or a fool.”

“And which am I?”

“That,” Gerold said, sliding the blade back into its sheath, “is what we are riding south to discover.”

They left the hospice as the first light touched the peaks, the mules picking their way down the narrow pass with the careful deliberation of animals that knew the cost of a misstep. Aldric’s legs ached. His fingers, wrapped in wool and leather, were numb despite the gloves. The world had narrowed to the sound of hooves on stone and the occasional cry of a bird that seemed to mock his discomfort.

By midday, they had descended into the valley of the Po, and the snow gave way to grey slush and then to mud. The air warmed, though not by much. Aldric pulled back his hood and let the wind dry the sweat from his brow.

“The road to Rome,” he said, more to himself than to Gerold. “Every step takes me closer to the crown I am meant to ruin.”

Gerold did not answer. He rarely did when Aldric spoke of the coronation. The Saxon had a soldier’s understanding of loyalty—he served the man, not the cause—and Aldric had long since stopped trying to explain the subtleties of his own treachery.

They stopped at a small village as the sun began to sink, a cluster of stone huts clustered around a single church. The priest, a thin man with the hollow eyes of one who had seen too many winters, offered them bread and weak ale in exchange for a coin and a prayer. Aldric gave him two coins and no prayer, and the priest seemed grateful for the transaction.

“We are close to Pavia,” Aldric said, tearing a piece of the bread with more force than necessary. “From there, the road to Rome is well-trodden. The Emperor’s couriers will have reached the Pope by now. He will be expecting us.”

Gerold swallowed a mouthful of ale. “And the woman?”

Aldric did not need to ask which woman. “Hildegard will be where she is needed. She always is.”

“That is not an answer.”

“It is the only answer I have.”

The priest, who had been hovering near the fire, cleared his throat. “Forgive me, my lord, but you spoke of Rome. Are you traveling to the coronation?”

Aldric turned to look at him, his expression carefully neutral. “What do you know of the coronation?”

The priest’s eyes widened, as if he had not expected to be addressed directly. “Only what the pilgrims say, my lord. They speak of a great ceremony, of the King of the Franks being crowned Emperor by the Pope himself. They say it will happen on Christmas Day, in the Basilica of Saint Peter.”

Aldric’s heart stumbled. “Christmas Day?”

“So the pilgrims say, my lord. They pass through here on their way south, carrying news of the great event.” The priest hesitated. “Is it not so?”

Aldric did not answer. He stared into the fire, his mind racing. Christmas Day. That was barely two months away. He had assumed—he had hoped—that there would be more time. Time to plan, to scheme, to find the one flaw in Hildegard’s arithmetic that would allow him to slip free.

But Christmas Day. The date was a noose, tightening around his neck.

Gerold watched him with the patience of a man who had learned to read his master’s silences. “The date changes things?”

“It changes everything,” Aldric said quietly. “I was meant to have time. Time to make the price of the crown so high that Charlemagne would abandon it. But if the date is already set, if the Pope has already agreed, then the Emperor is not asking for my help. He is demanding my compliance.”

He rose, pacing the length of the small room. The priest shrank back, sensing that he had said something he should not have.

“Hildegard knew,” Aldric said, more to himself than to Gerold. “She knew the date was fixed. She gave me the writ knowing I would not have time to use it. She gave me the illusion of choice, and I walked into it like a lamb to the slaughter.”

“Then why give it to you at all?” Gerold asked.

Aldric stopped. He turned to look at the Saxon, and for a moment, the mask of cynicism slipped, revealing something raw and uncertain beneath.

“Because she wants me to choose,” he said. “She wants me to decide whether I will ruin the coronation and take my freedom, or deliver it and be bound to Charlemagne forever. She is not setting me free, Gerold. She is forcing me to choose my own cage.”

The fire crackled. The wind moaned against the walls. And somewhere in the darkness beyond the village, Aldric could almost hear Hildegard’s voice, low and amused, whispering the arithmetic she had taught him so long ago.

*The sum of all parts is never what you expect.*

He reached into his tunic and drew out the writ. The parchment was creased now, softened by his touch. He looked at it for a long moment, then held it out toward the flames.

Gerold moved faster than Aldric had ever seen him move. The Saxon’s hand closed around Aldric’s wrist, pulling it back from the fire with a force that made Aldric gasp.

“What are you doing?” Gerold demanded, his voice low and dangerous.

“What I should have done weeks ago,” Aldric said, his voice trembling. “I am burning my way out of this trap.”

Gerold did not release his grip. “You burn that, and you burn the only chance you have of walking away from this alive. Charlemagne will not let you go. You know that. The writ is the only thing that can protect you.”

Aldric stared at him, his chest heaving. The firelight danced in his eyes, casting long shadows across his face.

“And if I deliver the coronation,” he said slowly, “if I make Charlemagne Emperor of the Romans, what will the writ protect me from then? I will be the man who crowned a king. I will never be free. The world will know my name. The vineyards will rot. The books will gather dust. And I will spend the rest of my life answering for a choice I never wanted to make.”

Gerold’s grip loosened, but he did not let go. “You are afraid.”

“Yes,” Aldric said, and the word was a confession, raw and unguarded. “I am afraid of being important. I am afraid of being remembered. I am afraid of becoming the man everyone expects me to be.”

The silence stretched between them, broken only by the crackle of the fire and the priest’s nervous breathing. Then Gerold released his wrist and stepped back.

“In Saxony,” he said quietly, “we say that a man who fears his own shadow is wise. But a man who fears his own light is a fool. You are not a shadow, Aldric. You are the light that Charlemagne needs, whether you want to be or not.”

Aldric looked down at the writ in his hand. The parchment was still warm, but it had not burned. He folded it carefully and tucked it back into his tunic.

“Then I will be the light,” he said, his voice hollow. “And I will pray that it does not consume me.”

He turned and walked out into the night, leaving Gerold and the priest staring after him. The stars were cold and distant above the Po, and the road to Rome stretched south like a ribbon of silver, waiting to carry him toward the fate he could no longer escape.

Behind him, in the shadow of the church, a figure stirred—a woman in a grey cloak, her face hidden. She watched Aldric for a long moment, then turned and vanished into the darkness, leaving only the whisper of her passing on the wind.

Hildegard had kept her promise. She had come to watch the choice unfold.

And somewhere in the frozen arithmetic of her mind, she was already calculating the cost.