Love Among the Ruins by Warwick Deeping

Under the starry pall of night, the last cry of the clarion of tragedy sounded over wood and meadow. Gilderoy, proud city of the south, had closed her gates against the royal host, wise at the eleventh hour as to the measure of the King's mercy. The wreckage from the battle in the valley had washed on Tamar's bosom past the walls, corpses jostling each other in the stream of death. Vultures had hovered in the azure sky. There was no doom for Gilderoy save the doom of the sword.

The moon rose red amid a whorl of dusky clouds, veiled as with scarlet for the last orgies of war. Gilderoy had been carried by assault. Morolt's barbarians were pouring through the streets; the gates yawned towards the night; bells boomed and clashed. The townsfolk were scurrying like rats for the great square where the remnant of the garrison had barricaded the entries, gathering for a death-struggle under the umbrage of the cathedral towers.