Hi all, long time no see.  I've had a theory brewing in the back of my mind for so long that I'm not sure if it's seeds go back to when I first wrote my GUCMT theory, when Mother Winter seemed so resentful of Reality, when I read the scene with Hade's crown of Mordite, or later when I heard a WoJ from the 2014 DragonCon, but some recent topics on the DF reddit sub about TWG reminded me of it, and when I reviewed my GUCMT, I didn't see anything hinting at it, so I decided I have to write it out. 

First, the WoJ, which my WoJ website has a link to the time stamp in the youtube video, but I didn't transcribe until I decided to write this out.

The Theory up front:  The Creator of the DF Universe was originally a rebel Outsider Lord.  (C=ROL)
Derivative theory:  Some version of TWG (The White God) is the Creator, and thus was a ROL, and either he immediately created subordinates to populate/help create creation, or he brought subordinate outsiders along as fellow rebel outsiders to help. 

First a WoJ that establishes some critical DF cosmological canon:

As far as the extra dimensional stuff goes, there’s /tons/ of extra dimensional stuff.  It just happens that some of them are a bit more extra dimensional.  Or in this case /non/ dimensional. 
The established canon of the Dresden Files is that the Universe has been created, and there are things that come from Outside of Creation and don’t like Creation and want it gone because it’s so disruptive, and sucks.  You know, from their point of view. 

So it's a small step from the above WoJ about the DF "canon" that if the DF Universe was "created" there was a "Creator" or "Creators."

Next to get to C=ROL, it is reasonable to think that if there are beings Outside the dimensions of/non dimensional to Creation, they exist outside of Time (which is probably a big part of why they would find creation disruptive, I mean what a horrible idea bounding things with this new time thing?).  So if Outsiders are non dimensional to time, and apparently want things back to before there was a time, it's reasonable that it was one of /them/ that is responsible for Creating it in the first place. 

As for considering the Creator a "Lord" of Outside, well first, we know there is a hierarchy among the outsiders from White Night chapter 41 when Lash helped Harry overcome the Outsider psychic whammy in the Deeps, we get:

"He who walks Behind is an outsider Harry.  A terrible creature, the most potent of the Walkers, a powerful knight among their ruling entities."

As for my derivative theory, we have the below WoJ about how Harry was able to enter Michael's house at the end of GS to see Maggie and Mouse:

The presence of an Archangel, essentially an executive VP of Creation, probably had something to do with it.

Now for some circumstantial evidence for these theories beyond the above WoJ and logic:
Chronicles of Amber Parallels
In my old GUCMT theory I went through the effort to show some connections between Zelazny's Chronicles of Amber, and the DF, and drew some parallels between my cosmology theories and the underlying principles of that series.  In this derivative theory, the parallels are more blatant, so I'll write a more detailed summary of those principles, and how they compare to the above WoJ about the DF canon.

In the Chronicles of Amber, there are many "mirror" worlds not unlike the Dresden Files "other earths that exist in the continuum of possibility" Jim has discussed a few times in WoJ I quoted in my GUCMT.  The thing is before these "mirror" worlds existed, there was only "Chaos" until a "Lord of Chaos" rebelled, and created a polar opposite of Chaos known as "Amber" (which was, as the name implies, stuck in a perty stasis).  The very act of creating Amber and having some progeny resulted in a continuum of "mirror" worlds that stretched from Amber all the way to Chaos.  And just as Jim describes about the DF canon, the remaining Lords and denizens of Chaos found this disruptive and wanted to destroy Amber and, thus the derivative continuum of mirror worlds. 

Some really powerful DF beings have hints of Outsider tendencies
Except maybe Ferrovax, the three most powerful beings we have seen on screen are Uriel, Mother Winter (And Summer), and Hades.  Of those, I say Mother Winter, and Hades are either former Outsiders who still have a level of affinity for the Outside vs being totally cool with our Creation. 

For Mother Winter, this thought became clear to me during Cold Days when I read the lines:

Calculation and thought flickered through those green eyes, faster than I could follow.  "Ah, yes.  I see," Mother Summer said.  "So many new futures unwinding."
"Too many bright ones," Mother Winter said sullenly.
"Even you must think better that than empty night."
[/snip]
'Time, time!" Winter breathed.  "He is not your weapon."
"It is not your world."

This passage made me think that Mother Winter is /not/ fond of creation, or any fondness her power has is manifested through "Mother Summer" (MS) (which is how I interpreted MS's line that MW "cares in her own way." MS is the attribute of MW that cares, which is why I grouped the 2 entities as one above).  This lack fondness smacked of outsider nature to me, although that's conjecture.

For Hades, when I read the Skin Game passage that his Crown is Mordite, my beta comment was "Oh... My... God..."  This is because to me this implies that he can be blithe about mordite because he /is/ of outsider origins, or he his heritage is close enough to allow him to be. 

We have this WOJ:
The first quote is the main one that is relevant.  I included the others from this link made by Serack http://www.jimbutcheronline.com/bb/index.php/topic,48717.msg2258880.html#msg2258880.

My main theory Murphy/Mab requires that Murphy revisit this time.  That said, this thread asks the question if we will see from Harry's point of view in a time traveling book the events when both Queens died.  Jim mentions these events in WOJ, but the avg reader really has no knowledge of this.  So for it to be germane to the story other than mere backstory not in the books, Jim will need to write it in.  How does Jim tie it into the plot? Will we get a reveal of who Mab and Titania are prior to ascending.

Wait, just checking, is your main theory that Murphy=Mab?

Because I'm pretty sure Murphy doesn't have a twin.

Can we get a break down of the biological relationships between the various Fae Queens we have seen on screen?
Of particular interest - Maeve and Sarissa, were they actually Mab's kids (biological sense)? If so, who was Mab's baby daddy?
Mab and Titania are actual twin sisters.
Maeve and Sarissa were twin sisters, from Mab. Their father was an Austrian composer and musician who died young.

Mavra trained Bianca in magic to help her get revenge on Harry and she was also responsible for one of the most successful attempts on Harry's life - the flame thrower attack that was designed to get around his shields. If she is Grey Council, then the Grey Council is black. Also, Eb dropped a meteor on Ortega for trying to kill Harry, I don't think he would deliberately let Mavra walk away unscathed for the same offense.

I recently saw someone theorize that Mavra's goons didn't use weapons in the altercation involving the Vampire staking by turkey because the purpose of the altercation wasn't to kill him but to manipulate him into teaming up with Lara.  When I wrote my list of Harry Power Ups long ago, I couldn't help but notice that Mavra's "attempt on Harry's life" didn't just result in the blackmail material that drove the plot of Dead Beat, but is directly responsible for the motivation for some of Harry's most impressive magical development in the series summed up by these bullet points from that post:

• BR: Burn trauma stunts Harry's ability to use Fire Magic PD
  • DB: Starts moving things using directly applied Force/Will rather than Wind RP/Sk
  • WK: Crafts his new Shield Bracelet which blocks more than force/physical, particularly fire Sk

I can't help but wonder if she was working with Lea in that altercation in order to force him to branch out and pursue magical skill beyond his fire standby. 

There's this which redditor dresden_loves_karren posted on the DF REDDIT

http://store.steampowered.com/app/661280/Dresden_Files_Cooperative_Card_Game/

Huh?  I see the loom connection, with her being one of the fates that operates it, but the Horsemen?  And what are you saying was rushed in (or out of) SK?

Here's Elegast's theory on that, which is slightly more nuanced than "the four Horsemen":

Oh, I think I've solved the four sets of teeth problem:

Quote from: Summer Knight

The place was all one room. The floor was wooden, though the boards looked weathe Red and dry. Shelves stood against the stone walls. A loom rested in the far corner, near the fireplace, a spinning wheel beside it. Before the fireplace sat a rocking chair, occupied, squeaking as it moved. A figure sat in it, shrouded in a shawl, a hood, as though someone had animated a bundle of blankets and cloth. On the hearth above the fireplace sat several sets of teeth, more or less human-sized. One looked simple enough, all white and even. The next was rotted-looking, with chipped incisors and a broken molar. The next set had all pointed teeth, stained with bits of rusty brown and what looked like rotten bits of flesh stuck between them. The last was made out of some kind of silvery metal, shining like a sword.

Quote from: Revelation 6:7-8˄ NIV

When the Lamb opened the fourth seal, I heard the voice of the fourth living creature say, "Come and see!" I looked and there before me was a pale horse! Its rider was named Death, and Hades was following close behind him. They were given power over a fourth of the earth to kill by sword, famine, and plague, and by the wild beasts of the earth.

• iron teeth = sword
• rotted-looking = plague
• pointed teeth = wild beast
• simple enough, all white and even = famine

EDIT: those four are NOT the four riders, but the four ways Death can kill during the apocalypse according to the Bible.

Via Publishers Weekly:

Butcher Brings ‘Cases’ to Ace Books

Ace Books executive editor Anne Sowards acquired world English and audio rights to Brief Cases, a short story collection by Jim Butcher, author of the bestselling Dresden Files series. The new book is a companion piece to Butcher’s 2010 short story collection, Side Jobs. It also includes previously published content based on the Dresden Files series, as well as a new Dresden Files novella. Brief Cases is scheduled to be released in summer 2018. The deal was brokered by Jennifer Jackson at the Donald Maass Literary agency.

So I looked at my Alex Verus books and confirmed that Ace is a Penguin Random House entity, but why doesn't this one have the ROC label like all the other Dresden Files books I briefly checked before posting this question?

I'm asking from a relative position of ignorance, not knowing the relationship between Ace and ROC other than that they are both Penguin Random House entities. 

Here's the WoJ Quantus is referring to.

domino7: 3) Is there a qualitative difference between Death Curses and regular magic? Not just using someone's lifeforce to supercharge a spell, but to do something intrinsically different. Would it be hypothetically possible for someone to stockpile magical energy to cast a huge spell and fake a Death Curse, like drawing blood to spray an otherwise fatal amount around a crime scene?
Jim: 3) Definitely a qualitative difference. I mean, we rate nukes in terms of "how many thousand tons of TNT is this equal to?" but let me see you try to deploy 80,000 tons of TNT as a weapon. If you could, the destruction would be the same, in theory, but the nuke has a quality all its own that makes it stand out. A death curse is the same thing. A really powerful practitioner (any member of the Council) could probably simulate a death curse with enough time and forethought, but there would be traces that an investigator could find, afterward. "Hey, why are there tire tracks worn into this road? Because someone was using it to haul 80,000 tons of TNT to the site of the explosion, and you can't do that without a LOT of trucks."

With regards to the power used in a death curse being used for a blessing, I've theorized before that a few real world martyr like deaths could be viewed as involving something like this.