High upon the slopes of Great Crag in the Realm of Metal stands Tempest's Eye, a watchful fastness of the Cities of Sigmar girdled by a perpetual cyclone. The storm-wall shields the city from assault, and through its shifting gyre only those who know the safe passages may pass. From this vantage the city's watchers keep an unblinking vigil over the surrounding lands of Chamon, ever alert for the first glint of an approaching foe.
The city is three cities in one, layered from crag to cloud. Upon the peak dwell the sky-captains and their aether-fleets, ready to launch at the tolling of the great alarm-bells. The mountain's flanks hold the barracks and forges, and in the valley below sprawls the teeming commons. Word of danger passes upward in moments, and the whole edifice can rouse to war before an enemy crosses the last ridge.
This obsession with vigilance is born of hard memory, for Chamon is a treacherous realm where the very ground turns to quicksilver and alliances shift as swiftly. The masters of Tempest's Eye trust nothing they have not seen with their own eyes, and even then only briefly. Some among the aether-fleets have dealings with the Kharadron Overlords, trading in sky-lore and salvaged metal. Yet in a realm this fickle, watchfulness alone is no guarantee of survival, only a slightly longer stay of execution.