[In this sort of unsettling quietness, it's been long enough that he's starting to become concerned. If not for Sebastian himself, at least for his own helplessness should anything out there actually manage to stop or incapacitate Sebastian for a while. It goes without saying that Sebastian's absolutely not allowed to leave Ciel unattended while dangerous things lurk around.
By the time that hour passes, Ciel will be getting up and walking out toward the bridge and looking around. He thinks he catches sight of a few fish scattering around, fleeing quickly as if startled by something, but of course he can't see the monster that's swimming underwater, coming up towards the same bridge Ciel's standing on.]