[ A good-natured laugh, an amiable yet apologetic smile, the image of piety as he lowers his gaze. It really could not be helped when the job lacked the excitement that he needed but a good book could provide. And most people could easily be persuaded to abandon their endeavors into the underground in search of the Kappa and their work.

So, even if he did pursue to make strides in this position, he at least completely a good novel. That's what truly matters. ]

Hmm. Nope. Not at all. I've never heard of them before. So this is truly my first time encountering the term Kappa, although perhaps I'm not qualified on details pertaining to yokai.

Let me think. Okay, though I've gone through a maze of tunnels, surveyed the area near the river, I haven't seen any sign of them. As for turning invisible or not, well nothing I've read suggests that to be an ability of theirs. The text I read states they are about the size of children, oh was that what you observed? Anyway, they're supposed to be aquatic so it wouldn't be surprising if they can make a quick getaway through the waterways as they're known to be excellent swimmers.

But I get the feeling what I've read doesn't apply here, see according to what I found the Kappa are described as clumsy when on land. Well, I also read they like to eat children, so... Really I am not sure if any information I have is valuable.