The town of Ermina turns out to be a city for fish, where the whole town is submerged in water during high tide. The moment the party mentions Water God Dragon, the fish turn hostile.
That is going to be the sacrifice 
to... the great Water God.
Sie wird dem großen Wassergott …
Será un sacrificio
para el Dios del Agua.
Ela vai ser o sacrifício para
o grande Deus da Água.