C643 A Strange Castle

Deep within the Fourth Tier, the rugged and desolate terrain abruptly ceased, giving way to a vast expanse of flat sand. The rock walls above were smooth, devoid of any stalactites, adorned only with a layer of moss that emitted a faint, phosphorescent glow.

At the sand's edge stood a majestic ancient castle, rising starkly against the dim backdrop of the Underground City