Dawnhaven

"Today is a great day for the sky. Today, we have won back a piece of our history! May ever future expedition continue to prove as fruitful."

-Charter returning from the first expedition to the city

Ancient History

The City of Dawnhaven was once a great military city. No one is quite sure what kingdom it belonged to, how many troops manned its boundaries, if it was in any battles, or even how it fell. There are whispers and rumors, of course. But most of the knowledge about the city details the daily life, elections, and professions of its citizens.
At the Intercity Cartography Station, charters keep the few records discovered in the city safely stored inside their archives. Dawnhaven was their largest find, discovered by the Cartographer in the first expedition ever made by charters. It's also the largest city ruins to have endured the Ashes War, so it's actually quite famous.
In Skydweller schools, students are taught history largely from the records of this city - how there was a surplus of enchanted leathermaking and carpentry jobs to keep the troops supplied, a vast undercloud lake where people took up fishing and hydroponics to feed themselves, and how the political leader of the city was also the leader of the military troops that inhabited it.
Now, Dawnhaven is making history of its own as a small Crysphic tribe inhabits it, fending off a few remnant wyrms and trying desperately to stay alive without being discovered by charters for fear of being wiped out.

Type

Military, Base

Long-Forgotten Knowledge

It's really a shame that the Kinleth tribe is so determined to hide from the Skydwellers. They carry with them the knowledge of several arcane arts that have otherwise been lost to skykind. A unification of that knowledge and the resources the Sky Cities have would bring about a much more advanced society for everyone involved.

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Into Thin Air

It shocked everyone when Dawnhaven vanished, seemingly into thin air. Charters ventured to the former site of the city over and over in an attempt to discover where it went. Aerial experts made maps of recent wind currents to try and track where it might have been blown away. But no one could find it. The only conclusion was that it had disappeared as the result of some spell, perhaps the work of sprites.
In reality, the city had simply been claimed by the Kinleth tribe, a small nation of Crysphics that somehow survived the skyshattering, but were isolated enough to be completely separated from the rest of the Skydwellers during the unification of the sky.Although they nearly died out from starvation, accidental falls, and the many other dangers of the Outer Realm, they managed to scrape by a survival until they discovered the ruins of Dawnhaven.
Crysphics are known to have once wielded great arcane magic, mastering spells that aided them where the lack of dragons made them weak. Now, the tribe preserved just enough of that knowledge to form a powerful protective barrier around the city - so powerful that it made the ruins invisible to all sapient creatures, save for the wyrms that would eventually become the city's bane.
In the meantime, the tribe revitalized the city, regrowing old buildings, reactivating mills, and replenishing the old farms. The city was a place where they could relax for just a moment, and the tribe grew enough to give itself a name - the name of the first Crysphics: Kinleth.

"It has been our haven and our refuge. We would not be alive without it. But in some ways, it is also our prison. Deep in each of our hearts is a fear of the outside. We've seen others. Other humans...and dragons. I don't know much about them, but the stories...I fear that if we reveal ourselves, we will be destroyed, and our nation forgotten."

-Crysphci

Although the tribe would definitely not be destroyed if discovered, life would definitely get harder for them if their existence became known. No one would kill them, but the relationship between a Crysphic city and the Sky Citieswould quickly get uncomfortable. Old prejudices on both sides would be reawakened, and progress would most likely be undone.
But the Crysphics hide from the Skydwellers well. It's the flora and fauna of the Outer Realm that they need to watch out for. Hostile animals on the prowl, poisonous plants creeping up inside the city's barriers, and, much more recently, vengeful wyrms attacking the city.
In fact, the wyrms are so bend on destroying Dawnhaven (probably as an act of revenge for their defeat in the Draconic Invasion) that the city suffers weekly attacks, and the Crysphics have to train from childhood to defend themselves from the beasts. The wyrm's relation to dragons have made the tribe even more wary of the Skydwellers, so they have resolved to stay surviving in Dawnhaven perpetually.