Days later, Castiel felt something very wrong with the cosmos. It just felt wrong. All of his angelic senses were tingling, and it felt like his ears were burning. He couldn't reconcile this issue. The Apocalypse was averted, and the Archangels left. Heaven and Hell closed down, and other cosmic beings were back to their station. Who in the name of the Lord would upset the metaphysical balance again? Not Lucifer, apparently.
Even as some of the Angels were now freely roaming the Universe, creating new Stars to populate the desolated and ruined City (caused by Lucifer' rampage), Castiel did not know anyone to speak with. His celestial senses were still burning painfully. Up until when things got a little desperate, an Angel stationed on Earth called out and summoned Castiel to a mansion.
"Hello, Castiel. Long time since the flopster disaster", the Angel joked a bit, alleviating the tension.
"Balthazar", Castiel is pleasantly surprised. The two old friends hugged briefly before getting into serious business.
"Balthazar, I am having very severe problems. All of my warnings are setting off uncontrollably, pointing me towards something bad, something malevolent", Castiel panickedly asked for his angel issue.
"Yeah, that's why I called you here. About that….". Balthazar's face went stiff, a brief sign of fear can be discerned on his facial expression despite his usually joking demeanor.
"Remember the big War we flappy birds did before the 'go to the edge of the Void, making Creation', all that? That war where we weren't even Angels, and just some ineffable things with no name and no manifested aspect."
Castiel hasn't followed yet.
"The time when we're divine stuff neither defined by the wholeness of existence and the emptiness of non-existence. You know, the time we're just so weird we can't be referred to by any language nor digits, and that Cantor chap whose idea of absolute infinity seems funnily irrelevant and small?"
"Thank you, get to the point", Castiel impatiently said.
"The point being, remember the first time we fought something? That smelly, eyeful stuff was our first enemy, Cass!", Balthazar sounds a little mocking that Castiel would not remember their very first enemy they ever combat, especially with God's wisdom and all that.
"The Nameless Things?"
"Oh, is that what we're referring to those things as?"
"Well, language and information were absent in that war, so that's the best we can name them as. What gives? We smite most of them and put the rest in a seal. Our older brothers attested that it is done, Balthazar."
"Yeah, well, Raphael told me that those ugly motherfuckers have been eroding the prison you shoved them into. Nice work on that by the way, but yeah, they're escaping".
"If…If they are escaping? How did that…That's impossible. I risked myself seeing that the prison can secure them", Castiel, disbelieving what Balthazar told him.
"Yeah we…well, stuff happens. Like it or not, it happens", Balthazar tried to comfort his best friend, to less than good results.
"And look, I know you have some sort of attachment to the Winchester brothers, but as a friend who cares about your well-being, keep those two monkeys out. Their minds are too retarded for this kind of fight."
"They're not retarded nor monkeys. Not anymore, Balthazar. Not after the Apocalypse. But I heed your words, they're not armed for this battle ahead. Any intel on those releasing the Nameless Things".
"Ah, this should interest you, Cass. Turns out, a big organization with a bunch of reality warpers entities getting into really big shit here. That organization is really cool, like a militaristic power of entire civilizations. You know, government funded. They allied with a cult worshipping the one that Lovecraft guy called Nyarlathotep. You'll love it. Let's go", Balthazar's tone turns out very enthusiastic despite the seriousness of the situation.
The two Angels traveled to a coal mine in a third world country. The workers were small in stature and age, seemingly very sick. It appears the coal mine is horrible to work in, as the boss always whipped the worker brutally when work was not as desired. Balthazar and Castiel did not appear in form, going into the coal mine unnoticed by the workers or the boss. What they're looking for, was an underground temple way below the coal mine. Balthazar led his friend through a very small shaft tunnel. A repulsive, dirty tunnel with nothing but darkness and suffocating air. Both of which were not in anyway problematic to two immortal beings predating time. Even then, it took them two a few minutes to walk down and navigate the absurdly long tunnel into that underground headquarter.
The underground headquarter was surprisingly small for a secret temple. Balthazar was thoroughly disappointed that a worshipping temple, with any panache at all, was smaller than a shit hole and didn't even have weird statue worshipping gods or something. Castiel hardly cared about Balthazar's concerns and walked down, flashing some angelic light from the palm of his hands in hope of finding ancient inscriptions. There was little to no symbols that could offer as a clue, as of yet. The two angels finally stumbled upon a single statue, simultaneously giving them some clue about what will happen next while alleviating Balthazar's problem with secret temple. It was a strange stone statue that did not make sense. Balthazar was dead sure the cult arose only as of recently, a few months after the Apocalypse, and yet, the statue of this deity suggested that its origin dated to antiquity, predating the Sumerian and traced back to the time when Lilith was still a human woman. Castiel and Balthazar were genuinely confused, and finally Castiel thought back. He asked the other angel where he found the information.
"Uh,...well...the Angels did. Looks like they're concerned with the upcoming disaster so since I've stationed myself down here, they'd like me to investigate. In exchange for 2 billion dollars", Balthazar sheepishly replied. "And let's face it, a legwork adventure is way more fun than pampering yourself in that pool".
"Balthazar, this is not a joke! There are not only lives at stake, but if this go south, ALL of God's creation, all of our efforts, will collapse in on itself. Get yourself straight. We are soldiers, and a war is coming", Castiel reprimanded his angel friend, sounding slightly frustrated.
Getting himself straight to his former military mindset, Balthazar finally started take things seriously. They both have no idea who the deity is, what kind of being it is or its powers. It must be powerful nonetheless if it were to gather a cult in the dawn of humanity, right under Heaven's nose. Since the god was worshipped long before most things, it wasn't hard to make some deductions. It could be that other alien beings occupying Earth during the time God created Adam and Eve, or it could be that the being was worshipped long before Adam and Lilith. The Angels probably never cared to notice because to them, time and flow of fate were wholly irrelevant, Castiel thought. Whatever it is, the lore of this deity should have been long gone due to the passage of time. Nevertheless, they need intel, and they're not gonna find anything new if they're sitting around doing nothing. Castiel decided to bring this to Bobby Singer, the retired hunter who either has the knowledge of this lore, or knows the hunter knowing about it. Balthazar, in the mean time, consulted the other Angels on what to come.