Now that I read it a second time and had a moment to think about it, I think this chapter (as in chapter 16 parts 1-3) somewhat lacks in suspense. I mean at the end of part the boy is kidnapped, and in next part he is rescued just like that. And then after that we will (probably?) get to see people fricking out about it after the fact?
Don't get me wrong, the installment was great, the battle epic, and I can see nothing wrong with Black Cats stumbling upon the demon unaware, but I get a feeling of it all disctinctly lacking an in-between.
Someone realising something is wrong, some kind of alarm being raised, something... Dunno, maybe it's just me, but I think it could help here.