The Gray Waste
From Ardrana
Oinos, Niflheim, and Pluton - these are the fabled "three glooms" of the Gray Waste that a cutter hears so much about. This land is evil solely, and them that's here don't care if they're in it alone or together. This is the great battlefield of the Blood War, called Hades by some primes, but anyone who's ever been here knows why "the Gray Waste" says it all.
The three glooms are just that, or so the chant goes - dull gray lands. The earth is gray, the sky is gray, even the petitioners here are gray. There's no color here; as soon as a sod steps onto the plane, everything he's got turns white, black, or gray. There's no sun, no moon, no stars - just gray.
The grayness reaches right into the hearts of the petitioners. They're a barmy folk without any feeling or emotion. They.don't laugh, don't cry, and don't care. All they do is despair, their life and hope sucked right out of them. They make great liars, because a basher can never see a whit of emotion in their faces, but they're too lost to bother with even that most of the time. That despair eventually reaches into the heart of travelers who stay too long, sucking a little life from them, too. See a berk with a dead-looking stare and he's a gloom-bug of the Gray Waste, for sure.
Along the Great Road, the Gray Waste is between Gehenna and Carceri.
Note: The Gray Waste originally appeared in the Planescape AD&D campaign setting from TSR. Its use here is for the purposes of providing context for the campaign only.