H-haha, well Nepeta's 'what you desire most' on the census was actually a big forest full of things to hunt, plus they're threatening someone ridiculously important to her. She frowns upon killing anything that isn't for food, but like I said, murder is pretty commonplace in her world. And the kid was literally raised by a big cat who taught her to hunt down terrifying monsters for dinner each night, so her tracking and fighting skills are decently badass.

... of course, the lack of regains means she's just a (very fit) thirteen-year-old human girl, and her fighting ability will reflect that. I have no idea how capable N is, but I'm sure the fight could go a number of ways, so his fate is pretty much up to you!