The Dungeon Run S02 E24 The Obsidian Oath

As darkness begins to fall on the City of Glass, the party receives a dire warning from Rhea. But as they set out to find KoKo, they discover a mysterious warehouse filled with clues about the Umbral Governor's plans. With the pieces falling into place, Otto reveals an important part of their history that could shed light on the dangers lingering over the islands...