I'm not sure why ya'll keep telling me how stupid it would be if Casca joined Griffith. I agreed with you on that already:
LunaLena said:
IF she regains her memories, IF she's able to process them rationally, and IF she becomes like her old self again, I don't see why she wouldn't think Griffith needs to be stopped. She, Guts, and Rickert are the only humans who know what Griffith is truly capable of, and I think that would motivate her to do something about him. I agree she probably would not want Guts to go down a revenge-filled path of self destruction, but at the very least, she'll want to do something.
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I think it's extremely unlikely she'll ever want to join Griffith again (at least I hope not, and I will consider her character ruined if she does), but I think it wouldn't be unfeasible that she'd want to at least confront him face-to-face before deciding.
Again, I think it's quite possible she will go to see Griffith to CONFRONT him, not to join him. Rickert did, after all. He had to see for himself. And until she simply broke, Casca was never one to shy away from hard truths either.
As for Griffith being her child in the sense that her corrupted fetus is part of him, therefore in a spiritual and not purely biological sense, tell me this: if he is not, why did Miura include it? For funsies? He could have just had that giant egg thing hatch and give birth to Griffith, no corrupted Guts/Casca baby needed. I had to go back and read that part again to remember exactly what happened (it's at the end of volume 20, if you want to check it out), and now I'm questioning if Griffith would have been even re-born if the fetus had not become part of the egg. The egg said that his wish was to be the egg of a new world, not to birth the savior of a new world. He then finds the weakened fetus and eats it. The images here and then later in volume 21 when Griffith is re-born imply that Griffith's new body grew out of that fetus - notice that the egg's wish was granted by FIVE "angels," but when the Godhand appear while Guts is fighting Mozgus and the egg hatches, there are only four of them.
As for what purpose this serves, at the very least, Griffith seems incapable of directly harming Casca or Guts. He left them alone when it was probably in his best interest to kill them, since they are the only people likely to oppose and/or expose him. He also seems more protective of Casca than before - when they met in the sword cemetery, he shielded her from flying rubble and left when his presence caused her brand to flare up. The fetus also saved her on more than one occasion. So there is a connection there, but only time will tell if it's significant or not. Of course, at this rate, we'll probably only find out in about 50 years or so, when Berserk is being written by Miura's preserved head in a jar.
ashfrliebert keeps asking "what would be the point." I dunno, does there have to be one other than "Miura decided to draw out the story even more"? What was the point of Casca starting to show warmth towards Guts again at the end of the Conviction arc, only to make her shun him even more immediately afterwards when the beast compels him to attack her? There are plenty of times in Berserk when things could have gotten better but got worse instead. That's why, although I would love for something to go right (or at least easy) for Guts for once, I'm not particularly optimistic about it.