City of Ohn Ohnan - Week of Adventures Location 6

This adventure location was first described in the write up on the River Jarl Steading of Clearwater.  Clearwater Steading is built right next to the mound of the King's Highway, at the point where the Greywater River passes through a long tunnel to go under the Highway.  At the mid point of this tiled tunnel, there is a side passage . . .

This was part of the Week of Adventure Locations, and it was Location number 6.  It is located along the Greywater River between the Darkearth Plains and the Sildur Reaches.

Adventure Location: As the Greywater flows under the King's Highway, it goes through an impressive tunnel, burrowed out and lined with very thick slate tiles throughout it's massive arch.  The interior height of the arch is nearly 160 feet, higher in some spots (the top surface of the King's Highway, in this area, stands some 300 feet up over the plains around it).  The river banks go right up against the tiled walls of the tunnel.  About half way through, on the western wall, there is a large opening that goes back into the mound of the King's Highway.

Side passage from the Greywater River

The opening is covered over by a massive bronze portcullis that is chained to stone pillars coming out from the tunnel walls on either side.  The opening is easily wide enough and tall enough for a vessel of a modest size to enter.  This sideflow of the river goes on for almost two miles, deep under the King's Highway.

The tiled ceiling and tunnel sides give away to rough rock, and eventually to stalactites.  Among them lurk all manor of subterranean hunters and predators.  Huge, aggressive, and hungry blind fish (of monstrous sizes, some 20 or 30 feet long) live in the almost always black river.  But, if this route is traversed, the explorer/adventurers will be rewarded with the river disappearing under a stone wall, with only inches of clearance. At this point, however, there is a stone jetty, with paths and stairways down deep into the earth, and eventually ending up at a ruined, and abandoned subterranean city.  The city is in a vast, huge, cavern (several miles across), with strange trees and plants growing in the subterranean light that is cast off the monstrous stalactites inside the cavern.

Underground City of Ohn Ohnan

 Legendarily known as the city of Ohn Ohnan, it is rumored to have once been a joint city of Mika-Born and the Old Ones, but it was destroyed by a crazed cult of madmen lead by an EHP of the Lord of Fire.  The ghosts of the Lord of Fire worshippers are rumored to haunt the ruins.  What else lives there now, is for the adventurers to discover. [This is location 6 in the Week of Adventure Locations]