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DON'T READ IF YOU DON'T WANT SPOILERS FOR ROSALIE CHAPTERS 41 AND OVER!!!!!!!
Okay. So. You guys have had some interesting theories after I just killed off my darling precious Rosalie, to say the least. If you read my authors note properly you would've read the morse code saying 'she's not dead haha.' by this, I mean what I said. Rosalie is not dead. To summarise things, She goes to the ministry, finds tom, has some sort of emotional breakdown realising how weak their love does make each other, Dumbledore destroys her horcrux thinking he needs to destroy it in order to kill Rosalie in order to kill Tom, and despite his thoughts on it, he does this. Dumbledore doesn't hate rosalie, he sees her as the daughter he could've had and if anything feels sorry for her but he will always ultimately choose the good of the wizarding world over love. When this happens, Daniel then has a change of heart and almost decides to avada kedavra Rosalie, who is weakened from just having had part of her soul torn out. Tom sees what is about to happen, shoots his own avada kedavra curse, which isn't 'blocked' by daniel, but more curved off of him, as daniel is a very powerful wizard, enough to be high ranking in the order. (i dont care if its canon or not dont come at me its a fanfic) Then, going past him, it hits rosalie who is standing behind him. Therefore, Tom does in fact kill rosalie. However, before he can touch her body, dumbledore moves her away. (SPOILERS, DON'T CONTINUE READING UNLESS YOU WANT THEM) Dumbledore moves her away because he can see something that Tom cannot. Rosalie is still in fact alive. Tom only killed the part of his soul within her body (also idc if it's not canon i'm using my imagination) Dumbledore then apparates with her body away from Tom to convince him in thinking that Rosalie is dead, he wants to keep them away from each other and 'protect' Rosalie. I won't spoil it anymore, but I hope that summarises a few things