Atheon: Atheon (Latin for Atheist) thought of the Black Garden as a pathetic thing and that the Vex were superior to it and worshipping it was useless. Therefore, he and a group of other Vex that thought like him, the "pure" Vex (If you notice, the Vex inside the Vault of Glass are different from the ones from outside). He then went to the Vault of Glass, it is still unknown if Atheon made the Vault of Glass or if the Vault of Glass made Atheon. After arriving, he started sending Vex from the past and future to the Vault of Glass, to raise his defenses. He pretty much didn't want to be part of the "religious" Vex. So that's Atheon, a super Vex that controls time and space inside the Vault of Glass that didn't worship the Black Garden. Also, it is believed, and this is in Grimoire Cards, that the world we're living in is made by Vex. What do I mean by this, the Grimoire Card says that every single person has a Vex version of them, that will do exactly what you do, so they can predict the plans we have against the Vex and stop us. Our only hope from getting away from this would be by informing Rasputin, the Warmind, since Rasputin is unpredictable and would be the only thing that could stop the infinite loop. This is in the Vex Grimoire Cards about Dr. Shim and other researchers.