In chapter 55.5 Vanitas tells Misha that he became Luna's kin in order to kill her with the book as she had become a curse bearer.
He claims that's the "truth" of what happened on "that day"
BUT
Curse bearers don't turn into dust when they die. We see this in the chapter where Louis died.
AND GUESS WHAT
GUESS FUCKING WHAT
Luna turned into dust when she died. Which would be theoretically impossible unless Luna was different from other vampires(which they were but..like... we don't know in exactly WHAT way)
What I'm trying to get at here is:
Vanitas didn't become Luna's kin to kill them. He became Luna's kin so that he could use the book to HEAL them but something obviously went wrong in the process and Luna died.
Yeah I was right and there was no way I was getting the rest of this done without making you all wait another month or two, so I just went to the next good break point. We're officially past the halfway point with Astarion though, so not too much longer before you actually get to see Rolan again!