Hi guys.
So, I'm currently putting together my ideas on the nature of Ereshigal, and its relationship with the Ogdru Jahad, Hecate, and The Black Flame. As I amble through the entire run looking for evidence and references to back up my more spurious claims, I have come across a bunch of interesting mentions, the first and most influential of which is right there at the start in Seed of Destruction; when Rasputin refers to the Ogdru Jahad as the "Throne Bearers of Ereshigal."
When I first read that line, I mostly allowed it to wash over me, but with recent events in B.P.R.D I have come to believe that the act committed by Johann in the final issue of Hell on Earth was possibly the most terrible mistake he could've made.
Let me elaborate on my current line of thinking. Anum and the watchers create the Ogdru Jahad, but they are lifeless. During the night, Ereshigal breathes life into them, gifting them with sentience, power, and the ability to do that which life does; procreate. The Ogdru Hem are created, and the Watchers flip out. Ten-thousand years of war, Anum imprisons the Ogdru Jahad, yadda yadda.
But when they are imprisoned, they take this power with them, but the echoes of that power are already there in the world. From this essence and influence, all life as we know it springs forth; men and frogs alike. When Ereshigal breathed life into the Ogdru Jahad, Ereshigal breathed life into the universe. Evidence? Read the most recent issue of Rise of the Black Flame and get the word right from the horses mouth. The Black Goddess resides in the souls of every living thing.
The Black Goddess... we've called Hecate the Black Goddess, but it has also been used in reference to the three eyed, sharp toothed female black statues which (at least to me) don't seem to be depicting Hecate in any form I have seen her. It's unlikely that it is Hecate speaking to the German in the jungle in the most recent issue of Rise of the Black Flame. I think she's a separate entity; I think she is Ereshigal.
If we assume the above is true, then the Black Goddess granted power to the Ogdru Jahad. Since Hecate has been referred to as a "sister" of the Ogdru Jahad, then it is likely that she also granted power to Hecate in exchange for her service. Hecate becomes an avatar of Ereshigal, profanes the temple of Thoth, brings low a civilization, and starts a chain of events that will eventually lead to the Ogdru Jahad being freed.
Why would Ereshigal do this? With the Ogdru Jahad imprisoned, Ereshigal's true power is kept locked away. The Ogdru Jahad are a well of power; a "throne," if you will. When the first Ogdru Jahad arrived on Earth recently, the Black Flame drew on this power to devastating effect. When he was destroyed, that power returned to its vessel, alongside all of the released energy that the Black Flame had gathered. The effect was such that the Ogdru Jahad became even stronger.
So why was it a mistake to destroy the Ogdru Jahad? It's simple. Energy cannot be destroyed. It all had to go somewhere. There is no Black Flame. Hecate is imprisoned, as are the rest of the Ogdru Jahad, so where has all that power gone? Why did all the monsters stop when the Ogdru Jahad died? It's because the gift of life that Ereshigal granted to that Ogdru Jahad is gone; the power has returned to its source.
That's my theory anyway.
Thoughts?