Board Thread:Speculation House/@comment-27082610-20171024034106/@comment-33544229-20180101085614

Arkantos95 wrote: So, in the first episode of V4, we see Beowolves spawning out of pools of black liquid. https://vignette.wikia.nocookie.net/rwby/images/a/a6/V4_01_00003.png/revision/latest/scale-to-width-down/640?cb=20161023150203

Now, obviously this is how Salem replenishes the Grimm hordes. The question is, where does this black liquid come from?

A potential answer comes in V4E10, when Ren and Nora stumble upon the Nuckelavee's cave. https://vignette.wikia.nocookie.net/rwby/images/e/e0/V4_10_00069.png/revision/latest/scale-to-width-down/640?cb=20170122160840

Black liquid, similar to that the Grimm in Salem's domain spawn from is scattered around the cave. But where does it come from, since Grimm obviously don't bleed and ol' Nuck isn't one for taking prisoners?

Recently it became apparent (there was a commentary about it iirc) that the mane of the Nuckelavee's horse part is actually a sort of negative Aura drawn from the negative emotions of the people it hunts. https://vignette.wikia.nocookie.net/rwby/images/0/06/V4_12_00016.png/revision/latest/scale-to-width-down/640?cb=20170205160259

My theory is that this same energy that takes this vaporous form is actually able to condensate when A) gathered in large enough amounts by a whole host of Grimm, like in Salem's domain, or B), when large quantities are gathered in enclosed areas, like the Nuckelavee's cave. As it condensates, pools of black liquid begin to form, and eventually, the distilled negativity causes new Grimm to spring forth.

Given that the Nuckelavee is arguably the most intelligent Grimm we've ever encountered in the show, I believe it's possible that  it realized some higher purpose behind its destruction and formed a base of operations within which to create a spawning ground for its kind.

Thoughts? It's very important that you rewatch episodes, otherwise you do something silly like forget an entire giant avian grimm