Edith was a small town located in the northern sea that was a trading hub renowned for it's rare fruit called the Wybatfruit (due to the surface resembling Wybat scales).
The town was completely wiped out by a fleet of airships solely on the fact that the Captain didn't like the prices they offered for their resources. When Edith's regular customers caught wind of this they attempted to track down the murderous fleet but were overwhelmed and wiped out as well. The leader of this fleet was Captain [REDACTED].
It was this event that caused the New Nations to send the four Old Fleets that eventually became the Alliance of Sky Sailors to the North in the first place.