Sea of Ruins

Lore & Background

This layer preserves the physical history of a civilization that predated the current surface world. The ruins scattered across the ocean floor suggest advanced technology and architecture, now reclaimed by the abyssal pressure and strange aquatic life. Scholars in Orth believe these structures hold clues to the origin of the Curse itself. The boundary at the end of this layer is marked by the Great Wall, a massive barrier that separates the fifth layer from the sixth. Crossing this wall requires overcoming not just physical obstacles but the psychological toll of knowing that returning home may cost one's life due to the Abyssal Curse.

In Their Own Story

The bubbles escaped Riko's mouth in slow, silent spheres, drifting upward into the gloom. Beside her, Reg floated weightlessly, his mechanical eyes glowing softly against the dark water. They hovered before a stone archway half-buried in silt, its carvings faded by millennia of pressure. The silence was heavy, broken only by the distant thrum of unseen creatures. Here, time had stopped long ago, waiting for someone brave enough to wake it.

Reader's Guide

The Sea of Ruins begins at approximately three thousand meters below the surface and extends to four thousand meters. This layer is entirely submerged under a vast underground ocean, requiring specialized diving equipment for human survival. The water pressure is immense, demanding reinforced gear to prevent crushing injuries during exploration. Numerous ancient structures from the Old World dot the landscape, some retaining trapped air pockets that allow brief respite without breathing apparatus. Bioluminescent flora provides faint light in the perpetual darkness, illuminating coral-like formations and strange aquatic vegetation adapted to the high-pressure environment. Predatory fauna lurk within these ruins, including massive cephalopod-like creatures and blind fish with sensitive vibration detection. The Curse of the Abyss reaches a critical threshold here. While descending is safe, ascending from this depth inflicts severe physical trauma on most humans. Symptoms include internal bleeding, organ failure, and excruciating pain that often proves fatal without advanced medical intervention or White Whistle artifacts. This layer serves as a natural barrier, preventing casual exploration of the deeper mysteries below.

Did You Know?

• Some ruins in this layer contain sealed air pockets where explorers can breathe normally for short periods.
• The water here is not fresh but possesses unique mineral properties that allow certain flora to survive without sunlight.
• This layer marks the transition point where standard diving gear becomes insufficient without White Whistle enhancements.