Endless warfare surges across the ashen plains and vast ramparts of Chernoggar, the plane known as the Iron Fortress. Here two feuding deities vie against each other with armies of warrior souls. At the end of each day the dead number in the thousands, but the next morning, they return to life to strive and die again, locked into an eternity of unending violence.
Chernoggar is a vast plateau of black, jagged rock. Travelers who breach its red-orange veil (the color of rust, some say) find themselves stranded on a plain of dried, cracked mud that is littered with the wrecks of astral vessels. Whatever sea that once surrounded the plane long ago dried up. A few miles from the veil, mighty cliffs of black stone climb up several thousand feet in beetling ramparts to the ancient battlefield of Chern, a wasteland of barren rock and deep crevasses. Great battlements of iron wall off the passes and crown the clifftops.
Chernoggar has no sun, moon, or stars. Its sky is a sullen orange-red color that waxes and wanes in brightness in a 24-hour cycle. At its brightest, it’s equal to an overcast day in the natural world, and at its dimmest, it’s about as bright as weak moonlight. The plane displays seasons of a sort. Over the course of a year, it warms to a furnacelike summer and then diminishes to a bitterly chill winter. Dust storms, wildfires, earthquakes, and thunderstorms are common, especially in parts of the plane where Gruumsh holds sway.
Chernoggar is a dangerous plane for astral travelers to visit. Gruumsh’s minions are likely to slaughter anything they meet. Bane’s servants seek to capture strangers, subjecting them to fearsome inquisitions before sentencing them to thralldom, torture, or imprisonment.