by Sentiel Mon Feb 04, 2013 6:20 am
Alright, this will be long.
Based on the 3D map viewer, the lowest point is the room with BoC in Lost Izalith.
In the opening cinematic, the land of the Ancient Dragons resembles Ash Lake, because of the trees.
Lost Izalith also has the roots of these Archtrees all around it and inside as well. In Demon Ruins, you can observe one of the trees roots covering the roof of Lost Izalith. However that doesn't mean it's located beneath Ash Lake. Simply, by the amount of descending you do to reach Ash lake and Lost Izalith, they should be on the same level, with Lost Izalith slightly above the Ash Lake.
This leads me to the conclusion, that Lost Izalith was one the very first human cities, build on the level of Ash Lake, much before humans ascended through the trees to the Lordran level of the world. Perhpas that's why the city has been forgotten, but I mostly give credits for this to the demon outbreak created by the Flame of Chaos.
Anyway, if both Ash Lake and Lost Izalith reside on similar levels, it means that it isn't below Ash Lake.
What's below there?
Again, in the opening cutscene we can see as the camera travel down one of the Archtree's hollow bark into the place where humans were created. As the narrator states, they came from the Dark. There's also reference on the Dark of the Abyss in the DLC. This leads me to believe that the Abyss is the origin of the Dark and vice versa. If that would be the case, it would mean that the Abyss is actually the darkness below the Ash Lake.
At least that's how I interpret the little information that the game gives me...