Chelska, the land, the nation, is not a happy place. A hopeful one in some ways, but not really a happy one.
The long, narrow valleys nestled in between steep lines of mountain peaks, the highland lakes surrounded by barren scrub, and the nearly immovably thick coastal jungles all conspire to make that a geographic reality. But even worse than that, they have fought somewhere between four and six battles for their very existence in living memory. First, against the Dwarves, a vicious revolution and war of independence. Second, the sudden revanchist fury of their northern neighbor, at a time when they were still struggling to build a shambling mockery of economy, and there was perhaps one factory in the entire nation that could build something large and complicated. And to add to that, the western Goblins' manic decision to join in on the fun and try to claim some of the mountains, hungry for minerals. After that, the Blood Mire. Necromantic, possibly vampiric, cultists of some sort, unleashing the horrible built-up magical miasma of the world's first glimpse at modern trench warfare, creating a living sore in the world that only bred more monsters, the very terrain warped. And then just as they were recovering from that, a heroic effort that saw new industries, new weapons, new preparations just in case something happened again, the largest superpower in the world started launching bombing raids and threatening invasion. It was another long, drawn-out conflict, with the crude giant hammers of anti-aircraft guns and chemical-engine biplane fighters with only the barest half-functional magical shields unable to do much against the keenly enchanted death machines of the enemy. But eventually, this too became too expensive for Glitterdawn Vale to continue pursuing uselessly.
So at this point, they are rather done with looming threats and existential danger to the ideals of Communism, common ownership for common good.
When the mysterious device is located, the coal mine is shut down immediately, and specialized research teams very slowly, very carefully excavate and examine it. Passive only. They don't know enough to determine how it works, though they do manage to guess that it's a gateway or portal of some kind after extensive study. Innumerable passive scans and experiments revealed it to not be of Dwarven make, as was first guessed, nor any recognizable make at all. And there is no active magic, no energy of any kind, really. Active experiments were officially forbidden at the highest level, unwilling as they were to potentially accidentally unleash a horror to rival the Mystifying Miasma (though Glitterdawn still claims that 'an unknown actor' released it, only for them to heroically contain it...)
As far as Comrade Velkon, the Glorious Leader, was concerned, it was just a lump of metal that might do something horrible one day, and only a few thousand people ended up even knowing the specifics of the mysterious find; The coal mine was shut down for "ground stability" concerns. There is a small garrison assigned to keep people out of the coal mine and keep a watch on the thing. The place used to be rig to explode and collapse Just In Case, but at some point the dynamite was removed- Probably for the Glitterdawn War. All that contains it, now, is a couple dozen incredibly bored conscripts, two spooks in the know enjoying a vacation supervising them, and a lot of concrete and steel barricades, barbed wire, vault doors, and so on.