Dark Water

Dark Water is a deathly liquid manufactured in the Chamber of Lost Souls in the center of Mer and controlled by the Dark Dweller, a kind of self-conscious, malevolent tar that coats the surface of the Merian oceans like oil and physically consumes anything that happens to cross its path, and its mere presence brings about the death of nature (animals, plantlife, etc.). The Dark Water was held at bay for thousands of years by the seal formed by the Thirteen Treasures of Rule, but then, in what has become known as the Year of the Black Tide, the Dark Dweller caused a rift in the seabed that unleashed the foul stuff into the oceans of Mer, causing it to slowly begin to engulf the planet.

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