Time: July 22, 1429 Location: A requisitioned bell foundry, outskirts of Reims
The foundry breathed like a sick lung.
Massive leather bellows wheezed, driving the furnaces until the air itself seemed to whiten. The air tasted of sulfur, charcoal smoke, and the sharp tang of molten copper.
Charles VII stepped through the heavy wooden doors. Behind him, Magnus the Scot kept his hand on his pommel, his eyes watering from the smoke. Lucas le Breton coughed into his sleeve. Joan of Arc stood silently near the threshold, a still observer amidst the roaring fires.
In the center of the chaos stood Jean Bureau.
He was stripped to the waist, his skin slick with sweat and black with soot. He was kneeling in the dirt, staring at the shattered, jagged remains of a bronze cannon breech.
Nearby, a young apprentice sat against a brick wall. His left arm was wrapped in linen bandages stained with old blood. His eyes were vacant, his hearing gone.
"Another one," Bureau rasped, running a calloused thumb over the torn bronze. He didn't look up to see the King. "The metal lies. We use good copper and good tin, yet the breech still tears when the powder bites."
Charles stepped forward, his boots crunching on the slag. He knelt beside the Master of Artillery.
He didn't look at the blueprints. He looked at the cross-section of the shattered bronze. The metal looked solid until the light caught it—pitted, wrong under the thumb. Charles rubbed charcoal ash into the break. The ash stayed, highlighting a honeycomb of tiny, treacherous pores.
"It is not lying, Jean," Charles said quietly. "It is starving. It needs to be fed while it cools."
Bureau finally looked up, recognizing the King. He did not kneel. His eyes were red from the heat.
"I answer to the fire, Sire, not to crowns," Bureau said, his voice flat with exhaustion. Bureau flicked ash from his fingers as if it were court dust. "If you've come to bless my guns, Sire, I've no need of blessings. The breech is thick. As it slowly freezes, it pulls itself apart from the inside. We lose three guns for every one that survives. And sometimes..." Bureau glanced at the deafened boy, "...we lose more than the guns."
Charles stood up.
He turned toward the door to catch his breath. There, sitting on a makeshift stool, Lucas le Breton was ignoring the heat, calmly processing the morning's requisitions.
Lucas softened a stick of red sealing wax over the lip of a brazier, letting a thick pool of it drip onto a parchment.
Charles watched the wax.
As the thick puddle cooled, the edges solidified first. Then, the center—the thickest part—began to sink, shrinking inward, threatening to form a crater.
Before it could hollow out, Lucas casually dripped a second drop of hot wax directly into the sinking center, feeding the void. Then, he pressed the Army Vicar-General's brass seal into it, stamping it into a solid emblem.
Wax for paper. Bronze for war. Same lesson: feed the hollow, or it breaks.
A kingdom is a casting, Charles thought. Leave voids, and it will burst.
Charles walked over, grabbed the sealed parchment from Lucas, and walked back to Bureau. He slapped the paper onto the master's soot-stained chest.
"You are letting the bronze starve itself, Jean," Charles said.
Bureau looked at the red wax seal. "Sire?"
"When the thickest part of the gun cools, it shrinks. It eats itself, creating those voids," Charles pointed to the ash-filled honeycomb. "You cast it upright. But you do not stop at the muzzle. You build the mold two feet taller. A solid cylinder of extra bronze above the gun."
Bureau frowned, his pride bristling. "A head of bronze? That is wasted metal. A cartload of it. Every extra cartload is another day of fuel, another night without sleep—and another moment for the mold to betray us."
"Then stop wasting them," Charles said, his voice dropping to a dangerous calm. His eyes flicked to the shattered breeches scattered across the floor. "The sheer weight of that extra bronze will press down like a King's seal. It will feed the voids. Cast it my way. One prototype."
Charles met the master's defiant stare. "If it bursts, you may call me a fool in front of your men."
Bureau stared at the drawing Charles made in the ash. He looked at the shattered breech, then at the King's unblinking eyes.
"If this fails, you will answer to the widows in my yard, not in your chapel," Bureau whispered. He wiped the soot from his forehead. "Fine. We cast it your way."
"Good," Charles said. "That is the first key—the key that keeps the barrel alive."
It was not a bloodless victory.
On the third day, a mold ruptured. Molten copper spat across the dirt, catching a journeyman's leather apron. Bureau had to tackle the man into a sand trough, beating the fire out with his bare, blistered hands. They lost the gun and the man's leg.
But by the fifth day of ruined molds, deafened ears, and sleepless nights, the foundry doors finally opened.
The first proper cast held. The second still wept cracks and had to be melted down. But one holding was enough to change a war.
On a secluded firing range outside the city walls, the new light culverin sat mounted on a sturdy field carriage. Its breech, cut clean from the extra bronze, was sleek and flawless.
Captain Gamaches of the 1st Company stood with his arms crossed, skeptical. Magnus and Lucas stood nearby, the ledger open.
"A beautiful toy, Sire," Gamaches grunted. "But if it takes fifteen minutes to load, the English longbowmen will have planted their stakes and shot us to pieces before the second volley."
Lucas dipped his quill. "How many shots before the barrel fails, Sire? I need a number."
Magnus added coldly, "And if it explodes, who answers to the widows?"
Charles looked at the ledger.
"Write the number of shots, Lucas. Write the names of the crew. If it fails, the ledger will assign the fault. Then we will fix it."
Charles turned to Bureau. "Show them the rhythm."
"The second key," Charles added, "is not metal. It is tempo."
Bureau's crew did not bring out a barrel of loose powder and a wooden scoop. Instead, a gunner produced a tightly stitched linen bag of black powder—a gargousse. He rammed it down the muzzle in one smooth motion.
"First piece. First crew. First shot—five seconds to charge," Lucas noted, his quill scratching the parchment. "Like a drumbeat." Same cadence as the drill field," Lucas added without looking up.
Next, the gunner did not load a solid iron ball. He produced a stitched canvas case-shot bag, bound with thin iron, backed by a thick wooden wad.
"What is that?" Gamaches frowned. "A canvas sack will not batter down a gate."
"We are not shooting at gates today, Captain," Charles said. "Inside that bag is scrap—bent nails, lead weights, rusted teeth."
He gestured to a tight cluster of oak stakes driven into the ground within a hundred paces. Close enough that no man could pretend it was luck. The kind that stood close so their arrows could fall like rain—and their stakes could hold cavalry.
"Load. Ram. Fire," Charles ordered. The motions were a cadence, echoing the drill fields of the 2nd Company.
War, Charles thought, had finally learned to keep time.
The gunner touched the linstock to the touchhole.
BOOM.
There was no visible arc of a cannonball. Just a deafening roar and a cloud of white smoke.
When the smoke cleared, the men coughed and stepped forward. The oak stakes had not been knocked down; they had been chewed alive.
Nails buried themselves deep into the oak behind, quivering. The ground was churned into sawdust.
A jagged splinter the size of a finger had spun backward, grazing Gamaches's cheek and drawing a thin line of blood.
Lucas's quill did not pause. Crew One: a splinter drew blood from Captain Gamaches. Noted.
A heavy, suffocating silence fell over the range. The horses stamped nervously.
Gamaches slowly wiped the blood from his cheek. He looked at the shredded wood, then at the smoking bronze tube. He swallowed hard, his hand instinctively reaching up to touch the golden Thorn on his chest.
"God above..." Gamaches whispered, his voice trembling as he looked at the quivering nails. "Sire... this is not war. This is what their stakes promised us."
Charles stared at the smoke, his face unreadable.
"No, Gamaches," Charles said softly. "Before this, we were merely brawling. Now we are counting."
Somewhere behind the line of horses, a chaplain whispered a prayer he did not believe.
Behind them all, unnoticed by the soldiers and the King, Joan of Arc stood perfectly still.
She did not look at the shredded stakes. She did not look at the flawless bronze.
She closed her eyes, slowly raised her hand, and made the sign of the cross over her chest. Her fingers trembled—once—then went still.
She had blessed swords before. She had blessed men. She had never blessed a machine.
For the first time, she could not tell whether she was praying for victory, or asking Him where a saint stands, when a kingdom learns to forge miracles.