Mab (?) in Twelve Months

[Mira]

I don't think Demonreach has a mantle-stripping quality.
I know it's a fan-favorite, as a way to "rescue" Molly, or etc.  Demonreach has a  crapton  of power, but entirely lacks the finesse and the understanding of Humanity that would be needed to separate a Mantle.

  I don't think it has to have, I think the mantle on it's own accord would go to the nearest available vessel.

[Dina]

Again, we don't know. My feeling is, no, the mantle would not leave Mab unless she somehow can shake it, which I don't think is possible (unless very specific circumstances happen, at least)

[Mira]

Again, we don't know. My feeling is, no, the mantle would not leave Mab unless she somehow can shake it, which I don't think is possible (unless very specific circumstances happen, at least)

Which putting her in one of Demonreach's cells would, be very special circumstances. 

[g33k]

  I don't think it has to have, I think the mantle on it's own accord would go to the nearest available vessel.

Doubtful.
Demonreach is all about capturing Powers.  If Harry were to genuinely target Mab, her Mantle would be captured (stripped of  her Mantle, Mab is likely a broken mortal shell).

[Mira]

Doubtful.
Demonreach is all about capturing Powers.  If Harry were to genuinely target Mab, her Mantle would be captured (stripped of  her Mantle, Mab is likely a broken mortal shell).

  However, that's what happens anyway, I don't think that Mother Winter was Queen before Mab, sounds like she has always been at the job.  Actually I wouldn't be surprised if Mother Winter has stripped other Queens of their mantle in favor of a new one. 

[Xamion]

  However, that's what happens anyway, I don't think that Mother Winter was Queen before Mab, sounds like she has always been at the job.  Actually I wouldn't be surprised if Mother Winter has stripped other Queens of their mantle in favor of a new one.

Mother Winter can be called/summoned/contacted using three different goddesses' names. This to me implies that the Mother Winter "mantle" (if it even really is one) is much more powerful than any other mantle we've seen so far, and almost certainly would completely consume and replace the potential vessel, personality and all.

I do agree though that she was there way before the concept of Winter Queens or Ladies (if not faerie courts themselves) was ever created in the Dresdenverse.