Just amended the prior comment so read that again as I finished posting it to correct anything before I finally published it.
If the Lady offs the Queen so she can proceate, what do you think the Queen mantle does while waiting for the Lady to do so?
"Three Queens of Summer; three Queens of Winter," she said, that alien gaze returning to me. "Maiden, Mother, and Crone. You are the Maiden, Lady Molly. And for you to be otherwise, to become a mother, would be destroy the mantle of power you wear." The mantle protected itself--as it must.
"What?"
She tilted her head and stared at me. "It is all within the law. I suggest you spend a few hours each daymeditating on it in the future. In time you will gain and adequate understanding of your limits."
So, the literal and precise point at which the mantle would be destroyed is for the Lady to become a mother. If the Lady can become Queen up to immediately prior to giving birth by the Queen dying by the Lady's hand direct, indirect, or neither, then it could be possible to maintain a pregnancy up until the time immediately prior to birth. She may even be able to overcome the prohibition against sex without destroying the mantle. To tie this in with my Murphy/Mab pregnant with Marcone or something similar, I could see Murphy gaining the Lady mantle and then having a set point of time in which she'd have to arrange her ascension to Queen, risk destroying the mantle, or giving up the Lady mantle etc before she had her child.
I think the presence of the Queen mantle in the Lady is necessary for the Lady to procreate. As a stronger mantle , it can override the Lady mantle defenses and push the Lady mantle out at the exact moment of conception.
I think the it's absolutely necessary for the Lady to acquire the Queen mantle to give birth. At which point the Lady is considered a mother by the mantle and would be subsequently destroyed is the pivotal question.
When Mother Summer abdicated, do you really envision that she had to coordinate with the Queen and Lady to make sure the Lady became a mother at the precise moment of abdication?
See this is where you have my words and their meaning confused. I said the Queen should need to be a mother prior to assuming the Mother mantle (the part where I suggest the Lady being a mother I'm talking about the case whereby all three Queen mantles are up for grabs and a Lady could push the mantles up to the Queen, but the Mother mantle requires that she be a mother). I didn't say she needed to be a mother to be the Queen. I think the Mother mantle is one such mantle that in an extenuating circumstance in which the succession is not a mother then the mantle may jump ship to reach out to a vessel that is. This is me thinking 'should' not 'would' type argument. Again, I'm arguing a case whereby how it is spelled out within the "law" differs from how we view the 'rules' to be considering fae speak by the Queens and by Jim and less than accurate first person views of those participating within the books.
I think I should talk a bit more about that special case where I think a Mother mantle needs to go to an actual mother. If there is such a rule then it appears that a Lady would never be able to pick up the Mother mantle as the Lady may never be a mother. She could though if she ever became one. (It's a bit complex but I like my Mother Winter and Summer to actually be what their title says they are.)
Done