The Vanguard groaned—not the low, steady hum of a machine in its prime, but a high-pitched metallic shriek that vibrated in the soles of Kaelen's boots. Outside the thick star-glass portholes, the caldera of Aethelgard was disappearing. The Null-Storm had crest the rim, a wall of absolute-zero static that turned the golden steam into jagged violet needles.
Chapter 20: The Voice of the Iron
"They're raising the ramps!" Elara cried, clutching Kaelen's scorched tunic. Through the frost-rimed glass, they could see the thousands of laborers—the "Dullards" who had just saved their own sun—being pushed back by the blue-lit spears of the Vanguard's elite guard.
"Cassia is cutting the weight," Valerius spat, his eyes reflecting the flickering emergency lights. "She's using the Storm as an excuse to leave the 'impurities' behind."
Kaelen looked at the brass speaking-tube station mounted on the bulkhead. It was a complex array of levers and diaphragms, the nervous system of the ship's communication.
"Valerius, you know the override codes for the Fleet-Broadcast?"
The disgraced Mage blinked, then a grim light of understanding dawned on him. "It's a harmonic resonance. A High Mage's frequency... or a mechanic's vibration."
Kaelen didn't wait for a spell. He stepped to the station, unslung his heavy wrench, and struck the primary bronze resonator. CLANG. The sound echoed through every hallway, every engine room, and every luxury suite in the five-mile-long city-ship.
"Listen to me!" Kaelen's voice, amplified by the ship's internal steam-whistles, roared through the Vanguard. "This is Kaelen, the mechanic from Aethelgard! Your 'Purifiers' just tried to shatter your own engines! They seeded the leg-drives with Frost-Blight! They'd rather see this ship sink into the Trench than share a breath with the people who built it!"
On the upper balconies, Lady Cassia's guards froze. In the Piston-Gut, the hundreds of "Dullard" laborers stopped their shoveling, their soot-stained faces turning toward the speaking-tubes.
"Hrothgar!" Kaelen bellowed, directed at the bridge. "The frost is in the secondary lines! If you detach now, the vibration will shatter the hull! The only people who know how to purge those lines are the ones you're locking out in the snow!"
There was a long, agonizing silence. Only the roar of the approaching Null-Storm filled the air.
Then, the speaking-tube crackled. It wasn't Cassia's cold chime. It was Hrothgar's gravelly growl. "Ramp-guards... stand down. Lower the boarding-nets. Every soul from Aethelgard comes aboard. If the Purifiers have a problem with the weight, they can jump off and lighten the load themselves."
A cheer erupted from the Lower Wards of Aethelgard, a sound that even the Null-Storm couldn't drown out. The boarding-nets dropped like iron webs, and the people began to swarm upward, hauled by the very laborers who had been fueled by Kaelen's words.
But as the first "Grounder" set foot on the Vanguard, a new sound emerged. A low, rhythmic thrumming from the ship's center.
"Kael," Elara whispered, her hands suddenly glowing a pale, terrified violet. "The 'Frost-Bombs'... they aren't waiting for the detachment anymore. They're slaved to the intercom. Your voice... it triggered the countdown."
Kaelen looked at the manifold he had just purged. A new cluster of violet crystals was already blooming, fed by the vibration of his own speech. The Purifiers hadn't just sabotaged the ship; they had turned it into a giant, ticking trap.
"Valerius, get Elara to the bridge," Kaelen said, his voice dropping to a calm, terrifying low. He tightened his grip on his wrench. "Tell Hrothgar to prepare for a 'Hard-Launch.' I'm going into the Core-Tank."
"Kaelen, no!" Elara grabbed his arm. "The Core-Tank is pure solar essence! You're a Dullard, you'll be vaporized!"
"I'm a mechanic, El," Kaelen said, kissing her forehead. "And the engine is running hot. I'm just going to adjust the timing."
He turned and vanished into the steam, descending toward the one place where no human—Spark or Dullard—was ever meant to go: the literal heart of the leviathan.