An ancient forerunner structure located in an unknown part of the galaxy, harboring secrets of technology which would later be seen throughout the entire system.
Seeming to be the first of its kind, its location was most likely chosen for the formidable presence of its rock formations. Forerunner legend speaks of a facility such as this in an unknown location and resembling that of an ancient creature rising up out of the sea.
Thought to be a predecessor to those found on the infamous halo rings, this facility holds a primitive version of of their blueprint and surely many other unfathomable secrets.