Chasm of the Lords

There are few physical attributes to describe the chasm: It's a large gap in the earth, somewhere between hundred and thousand yards wide, a few miles long, and infinitely deep - or at least, it seems like that.

The curious thing about this gorge is that it moves from place to place. Not by standing up and walking away, mind you, but by closing the gap until only the normal landscape remains - while simultaneously, the chasm re-appears on a random place in a random layer.

Of course, with a name like "the Chasm of the Lords", the place has a few darks as well. Rumour has it that with every jump to another place, on a different layer or realm or close to its original location, the Chasm creates a spiritual connection to one of the Abyssal lords - and cuts the previous connection.
What exactly the effects of this spiritual connection are is unknown but most assume that everything falling down into the Chasm ends up where ever the connected Lord wants it to go. Some say that the Lord can populate the Chasm with his minions, easily gaining access to foreign layers and sometimes even to the realms of his direct enemies.

As the Chasm of the Lords is (usually) open for the local residents to explore, many tanar'ri and other Abyssal creatures have set up kip in the Chasm. Most of them stay only for a short time, waiting for the Chasm to appear in a place they like better than their previous home. Others create a permanent living place mostly in the Chasm's upper regions. The lower regions are sparely populated. But the farther down one goes in the Chasm the more powerful the residents become. About a mile down, travellers will meet few creatures other than true tanar'ri, retrievers and the spare bebelith.

Strangely enough, many tanar'ri seek the Chasm, risking their lives willingly to go down as far as possible. It seems they know or feel something about the Chasm's nature - some dark unbeknownst to mortals - and are unwilling to share the secret. Of course, this doesn't keep them from forcing mortals, amongst other beaings, to accompany them - usually as cannon fodder.