The news of the King's failing health traveled at the speed of a tired horse, roughly ten miles an hour, provided the roads weren't washed out. To the rest of the world, this was the natural pace of information. To Alaric, it was a lethal lag.
"In a civil war, the side that knows the enemy's position ten minutes faster wins," Alaric said, staring at a spool of thin, drawn copper wire in the castle workshop. "We can't rely on riders anymore. We need the Telegraph."
Kaelen picked up the wire, squinting at it. "Copper? It's too soft for a pike, and too expensive for a roof. What is this, Alaric? More 'God-Voice'?"
"It's a nerve, Kaelen. I'm going to string it from here to the Duke's southern watchtowers. Instead of a horn blast that anyone can hear, we'll send pulses of lightning."
---
The challenge wasn't the wire, the Oakhaven draw-plates were already producing miles of it for the new "Textile Revolution" looms. The challenge was the power. Alaric spent three days in the cellar, surrounded by glass jars, lead foil, and a massive friction-disk machine made of silk and amber.
"It's a Leyden Jar," Alaric explained to a terrified Martha as he cranked a wooden handle, creating a crackling blue spark that leapt between two brass spheres. "It stores the static energy of the air. It's small now, but if we link enough of them, we can push a signal through ten miles of wire."
He didn't have a modern battery, so he used Galvanic Cells, terracotta pots filled with vinegar and alternating plates of copper and the Duke's "stolen" zinc. It was foul-smelling and inefficient, but it worked.
---
By the end of the month, a thin copper line ran along the treeline, insulated by ceramic knobs Alaric had commissioned from the village potter. At the end of the line, in a small hut five miles away, sat a young boy named Pippin, who had been the top student in the "Oakhaven Alphabet" class.
"You don't send letters, Pippin," Alaric said, showing the boy a small brass lever. "You send Pulses. Short and long. We'll call it the Oakhaven Cipher."
Alaric tapped a rhythm: Short-Short-Short, Long-Long-Long, Short-Short-Short.
"That," Alaric whispered, "is the signal for 'Emergency.' If the Crown Prince's knights cross the border, you tap this. The bell in my solar will ring instantly."
---
Two weeks later, the bell didn't just ring; it screamed.
Alaric and Kaelen rushed to the receiver. The needle of the galvanometer, a magnetized sewing needle suspended by silk, was twitching frantically against a wooden scale.
Tap-tap... tap... tap-tap-tap.
"C-A-V-A-L-R-Y," Alaric read aloud, his heart hammering against his ribs. "S-O-U-T-H... P-A-S-S... O-N-E... H-O-U-R."
Kaelen looked at the hourglass on the table. "One hour? The fastest rider from the South Pass takes four hours on a good day. If this is true, we can set the ambush at the Black Rock before they even know we're awake."
"It is true," Alaric said, already reaching for his cloak. "The King is dead, Kaelen. The Succession War has reached our doorstep. But the Crown Prince is playing a game of chess where he thinks the pieces only move when he touches them."
---
An hour later, the Crown Prince's vanguard, fifty elite heavy cavalry, trotted confidently into the narrow gorge of the Black Rock. They were unhurried, their lances upright, believing the Oakhaven garrison was still asleep in their hay-beds.
They didn't hear the click of the telegraph key.
They only heard the BOOM of three hidden "Thunder-Tubes" positioned on the ridges above, triggered simultaneously by a copper wire and a spark.
The gorge became a meat-grinder of falling stone and smoke. The cavalry, the pride of the Kingdom, never even saw the enemy. They were defeated by a man sitting five miles away in a stone room, drinking lukewarm tea.
As the smoke cleared, Kaelen looked at the carnage, then back at the copper wire trailing up the cliffside.
"Is this how war will be now?" Kaelen asked, his voice hollow. "No honor? No face-to-face? Just... lightning and math?"
"Yes," Alaric said, his 21st-century soul mourning the simplicity of the past even as his mind calculated the next upgrade. "War is no longer a contest of bravery. It's a contest of Information Density. And we just reached the top of the curve."