Who exactly lived at Tidecliff prior? What caused the town to get abondoned?
Everything around the island is pretty vague, and is all up to speculation.
Here's what we know so far:
Elevated, mountainous terrain
Lacks any sign of walls
Destroyed cranes are placed both seaside and inland
Ruins of merchant stands are set up across the entire island
There are large emerald crystals within the island’s rock and under the sea
-Samerian banners line the rocks around the island
Vases and storage piles are scattered all around, much more than others
Small, rectangular patches of grass (or other soft material?) lay on a few locations of the island
We can somewhat piece together that the island was once sworn to Sameria, was a prosperous trading hub, and that its terrain provided natural defense from attackers.
The emerald crystals on the sea floor and inside the rock might’ve been the island’s main appeal, with Sameria mining out large amounts of it at once, which would also explain the need for cranes to help transport it across the island.
Now, the real mystery, why did such a successful town die out all of the sudden? The first assumption the majority of people would make is that the town was directly invaded by another kingdom, but that would’ve been extremely difficult to do with the island’s natural defense. Also, there are no weapons lying around the town at all; a majority of the storage piles and crates are fully intact as well.
My personal theory is that instead of directly fighting on land, an opposing kingdom (most likely ruled by the current/former wind curse user) surrounded the island with whirlpools, forcing its inhabitants to either drown or starve to death.
Yes, but almost impossible lore-wise, the forces of the vortex would most certainly drag you in.
Plus, this opposing kingdom would also probably have a blockade in addition to the whirlpool, so anyone who successfully got past the whirlpool would’ve been shot and killed
It seems to have been a mining town probably akin to how Frostmill is for Ravenna, or how whispering cavern may have used to be. As for how it was lost, I’m thinking more likely that the whirlpools were caused somehow as a result of the mining. Maybe they accidently dug into some large underwater caverns and breached part of it that led back into the ocean, or maybe the crystals themselves had some sort magic energy in them and fucking with them enough caused the whirlpools. Something along those lines is my best guess based on what info we do have.
Speaking of which, is it a coincidence that Crystals and Whirlpools are found around the island, and Ruby Roger tells us that he has crystal magic and Clark Silvers has wind?