Wow, I concur, this has probably been my favorite book in the series! So much happened and it just reset so much of what we knew, it was like starting a new volume in the Dresdenverse.
I have lots of questions and I'll add some more commentary later, but here is my question from p. 506:
"It was Halloween Dresden. You put on a mask for a time. That's all." He looked directly at me and said, "Many, many mantles are worn-or discarded-on Halloween night, wizard."
"You mean masks?" I asked, frowning.
"Masks, mantles," Kringle said. "What's the difference?"
He winked at me.
And for the briefest fraction of a second, the shadows falling from the tower and the cottage in the gathering morning behind us seemed to flow together. The eye he winked with vanished behind a stripe of shadow and what looked like a wide scar. His face seemed leaner, and for that instant I saw Vadderung's wolfish features lurking inside Kringle's.
This got me thinking about a few very important things. One, can the mantle of the Winter Knight be removed
without it killing Harry? If so, could the same be said about the mantle of the Winter Lady? It seems like Harry can't be the Winter Knight until the BAT can he? Doesn't he have to eventually move on?
And if he doesn't how long until the mantle drives him too far? It seemed like there were times in CD where he was barely holding it together, and he's only had it for a few hours! What will Molls be like?
Third, what's with the tie-in to Vadderung? Brothers? Similar creatures? Surely not one and the same person, but possible?
And I don't mind at all, but this book seemed to make way more use of the f-word than the others did. I mean, you might hear it every once and a while before, but I lost track of how many times it came up in this book.