It seems Minerva was already part of it after all, trying to run away from something we are part of can be either difficult, at first Minerva was afraid of the horror and the dance, it only means this were the missing part of that usually called her in whenever she is asleep.
It is certainly as you explain it my friend. Minerva was already marked and her resistance was futile. It was only a matter of time before she succumbed to her sisters.
Such a nice story 🤗