This morning. [Natsume repeats it, glancing again over his shoulder. At least it's a slow, methodical type of walking. When things run is when it gets tricky, in his experience.] Did anything happen to prompt it, do you know? Sometimes the cause can reveal the solution.

[Then he lets out a soft, somewhat pained kind of laugh.] Ah, no. I don't tend to talk to many people. [In fact, if L hadn't taken his water, Natsume would've ignored him as well.] But if it's happening here, then it's likely a wide-spread issue.