Ok, I was in a book-reading mood.
And the H at least, hadn't watched his brother go nuts while wielding the blade. Still, trying to marginalize it, deny it, etc... made him at cross-purposes with the blade. The h well, she can be excused for not realizing what she's wearing since it didn't actually DO anything until she accidentally woke it up.
The bad guy in this one, much like the bad guy in the first one, was in accord with the blade. That is to say, he was not a good person, so he and the blade formed a partnership quickly.
The flashbacks were seriously annoying after a while.
So was the h for that matter. Tossing her head defiantly? Repeatedly? Eh?