The parts we both kept hidden

As she walked over to where the battle was happening, Fay was unusually calm… 

No, that's not the right word. 

She was unusually silent, sneaky, and low-key. 

Everything about her right now made it increasingly hard to keep my eyes on her, as if her very presence in the world was actively erased by some sort of force. 

And then, as we reached the area where the first corpses were scattered on the ground with all sorts of ugly marks on the nearby trees… Fay's presence returned. 

And it did so in a big way. 

BOOM!

Turning herself into a flash of lightning, Fay surged ahead. And only when she landed down roughly a hundred paces away did I realize that she left several, fresh corpses in her way. 

'What?'

Raising my eyes along the path Fay took, I saw one, two, three… eleven, twelve, thirteen humans fall down to the ground with fountains of blood squirting out from where various parts of their bodies were ripped away.