Moon's Siren

Andrew: Moon's siren is pretty creepy. I wanted it to sound like the whole superstructure was howling and crying out in pain.

Andrew: Is it normally supposed to sound like that?? Or is that some kind of
side effect of the superstructure's severe deterioration, and impending death?

Andrew: I also like the detail that it's still functioning in Submerged Superstructure after the
collapse... though the sound from it severely muffled, since it's buried so deep under the rubble.

Andrew: Some people have asked why Moon has a siren but Pebbles does not.

Andrew: Maybe the siren was used to alert those on the surface of the coming rain. This would have been especially important
while she was still in the middle of construction and the city on top was not yet fully built and ready for inhabitation.

Andrew: Pebbles is a much newer model of Iterator than Moon, and by the time he was built, the surface was already abandoned.

Andrew: Not to mention with his close proximity to Moon, a siren might be fairly
redundant, when Moon was already right next door doing the announcing.