Buried beneath the apex of Suvayu, this structure lies in wait for the final chapters of the campaign, where it is of extreme importance.
The Obsidian Gate gets it's name from the color of it's predominate material. Smooth, hard, and dark, the mineral-like substance seems impervious to wear and tear by any means. The Gate's many smooth surfaces are reflective and deep, hinting at translucency below the surface, like dark quartz. Lied into inlays along the broad floor of the gate is it's second material, also a hard mineral- only this one lightly shines, and has no color of it's own.
The gate's construction is simple and geometric. It consists of a circular main platform, seven spires, and a altar which protrudes from the center of the platform. The three-sided spires are evenly distributed along the perimeter of the main platform. The inner face of the spires is perpendicular to the altar, making it flush with the edge of the platform at it's base. As these spires taper and jut upward into the sky, the curve inward to point toward the center, giving the gate the look of being held in the palm of a great seven-clawed hand.
In three locations along the base, there lies shallow and long stairs stretching between two spires. Two of these sets of stairs are right next to each-other, only a spire dividing them. The next is between the two spires directly opposite the base.
The altar in the center has eight faces; seven on the side and one of the top. It rises up from the base only three and a half feet, and stretches four feet across. In the center of the altar is a large indentation, which takes the majority of the surface; within lies nine curved stones which interlock and overlap each-other, as a shutter on a camera. They continue under a lip of the indentation, suggesting the altar is hollow. The seven corners created by the altar's side surfaces create points, which if extended from the center as lines would intersect with the inner face of each respective spire.
The base itself is simply a circular protrusion from the ground, raising some eight feet from the base of the stairs. It's most distinguishing feature is a number of lines and symbols created with a shining crystalline mineral, lied into indentations on the base's surface. Seven of these lines surround the altar, each originating from the center point of one spire and reaching to the next.