...So, what's wrong? Does it have something to do with the investigation?

Ah, yes.... you could say that.

...As I thought. The forensic's side has given up hope too. We just couldn't find anything, no matter how we try.

I don't want to admit it, but that Arsenius is one clever bastard.

Ah, right. There's a really awful thing too.

Huh, what is?

Remember that day when I was collecting the dinosaurs' bone fragments at the museum?

But when I checked them, they weren't bone. Somehow, all that I brought back with me were just ordinary stone!

Ah... that does sound awful.