Arthur came out of the fissure, leaving the city to form. Not even he could get close, or else he would be seen by the crown and recognized as a threat. Instead, he was lucky enough to know about this first.
Mountain Range Rovero has always been the odd place about Kera. It separates the Yalveran from the Lesser Blood Ocean, where all kinds of phenomena occur. Thus, no one bats an eye over the strange occurrences here, like the rising of the dead.
As he reached the mountain's base, the light restored its trajectory, so the visual disturbances disappeared. Arthur was left to look at the crack in space, wondering how to hide it for long enough.
If the seven families heard about the Second Holy Crown Trial, they would start their preparations. From what Arthur gathered, this won't be like the first trial, with many trial grounds. Instead, it would be one big city for all the survivors.