Thank you for the scanlations, Super Sailor Yue. It's nice not having to jump between the raws and the translation for once.
That's definitely not FWR's hand. I guess we are supposed to believe it's C!Syaoran's, but it could also be Kyle's, or maybe even Xing Huo's (the hand looks male, but still. It's not impossible). The mystery of those two needs to be cleared up soon anyway, so it's about time they show up again. I don't think it's R!Syaoran's, that seems to easy. It'd be no thriller for those who also follow TRC (which I guess is basically everyone).
Has that kappa (since I guess it's not a mermaid) appeared in any earlier chapter? I don't remember seeing it before. You guys think it'll be of importance, or is it simply a random folklore cameo similiar to that 'hand in the ground' that was featured in one volume?