One thing I noticed, there is a small whispering voice that is a bit muffled at the entrance of the Fishing Hamlet, near the lamp. While wearing the Milkweed Rune, the guy chanting in the beginning mentions 'listen for the baneful chants, wherever they may be.' I decided to take that literally and see if I can make out what that voice is saying.
So far I can make out it says Bergenwerth, and it says something about the mother, and something about the baby, and something about the curse is upon us....
I can also make out words 'a call to...' and 'blood'.
Do you think this is worth searching for? I wonder if there are other voice tracks hidden within the Hamlet. You can hear the voice best by positioning yourself against the building in a corner where it is loudest, and swirl the camera around so that it is physically close to the building.
EDIT: Now that I listen further, it sounds like it is rhyming. I can almost make it out.
EDIT 2: I can hear it more clearly where the first fish guy crawls out under the building. Standing there, it's much clearer.
EDIT 3:
"Dear Kos. A Call to the blood[less] wherever it may be
Source of all greatness, [something] can be. [something about the sea as well]
A curse is upon [the fetus? something that starts with an 'f' sound]. Every baby.
Mother is Dead. Her baby is [curse?] upon the sea]"
There's a deeper voice that's hard to hear, but it sounds like she says "the bearer of peace is bloodless". Not sure on the last word.
I will add more as I make out the words. This might help provide some perspective. It almost sounds like a villager praying to Kos, or praying for the curse on the people who caused this calamity.