The structural transition from a localized chemical assault to an absolute thermodynamic failure did not begin with a sudden explosion inside the casemate. It arrived as a low, crystalline whistling sound expanding through the hollow core of the fort's ancient green basalt foundation blocks. The thick iron security door at the rear of the primary gun gallery did not burst inward under a kinetic ram; the heavy metal plate simply began to pale, its dark graphite lacquer blistering and peeling away in long, smoking ribbons as the silent heat from the lower fish vaults crept up the internal drainage flues.
The Northern Imperial Fleet wasn't trying to capture the southern directory anymore. They were using a liquid-phosphorus payload to completely sterilize the sector.
