A cage made to hold primal beasts. It was created from a primal beast part by Astrals using the same research that built Pandemonium. Its aggressive characteristics are from the primal beast it is comprised of. When it was discovered by a skydweller alongside the Skyblade, it had already turned into its Astral Void Lacrima state, leading people to believe it was a separate object entirely from the Celestial Eye of legends. There are some researchers who consider that the two might be one and the same, based on their highly similar characteristics.
