I've been hitting the grimoires pretty heavy lately and after the events of the Paradox quest in TTK. I've come up with the theory that the skeleton you find in the Vault of Glass isn't Praedyth, but actually Kabr most likely. Here's why.. If you nab the Grimoire card titled [i]Praedyth's Door [/i] it talks about how Praedyth has constructed a makeshift comm over the course of the last decade, which he is finally able to use in small windows when the Vex "open his cell" and that's how we recieve the transmission. You go, fight the Vex and find his skeleton. Case closed, right? But ponder this.. In previous grimoire cards Praedyth's name was unable to be read, spoke, written or heard without a level of distortion because he had been wiped from time and existence by the Vex. Pahanin swore that him and Kabr went into a Vault with a third person while others claimed they didn't. Kabr escaped from the Vault days after Pahanin did, the Vex corrupting his mind. He said he made a wound in the Vault and starts describing Atheon. He carried Vex from within outside to dismantle them, craft his armor and return to the Vault where he opens the "vault by himself, but not alone" "If I speak again, I am not Kabr," If, being the key word. Now when you go through the Vault of Glass raid you can pick up all of Kabr's armor and Praedyth's Weapons. The skeleton you find in the Vault has no armor on or around it. Assuming that Kabr returned to the Vault with just the Aegis and his corrupting mind, this would explain why there are no weapons with the body either. Your ghost says that there is a bit of light left in the body but cannot bring him back (probably due to the guardian's lack of Ghost) That being said, if Praedyth was wiped from existence there would be no trace of his skeleton. If it were his body. There would be armor. Instead, only his guns are found. Praedyth is communicating with you when his cell is opened via his comm. That means that he, and the comm are alive and well somewhere within the Vault. Kabr's entire armor set is found in the Vault. So, it is more likely that the Vex corrupted-Kabr returned to the Vault and wandered it aimlessly as he slipped into madness and eventually perished. But hey, it's just a theory. Discuss! [b]Edit: Many people have brought this up about the Aegis. Kabr didn't [i]become[/i] the Aegis but he did craft it. The card says he infused it with his light (we don't know how much or little since we know guardians can have a varying amount of light. Body on the moon with none, corrupted guardians with fading light, great amounts of light and small) he then keeps talking about what is happening to him since he made it. About the Vex being in his blood and brain. He's still alive at this point and not the Aegis. [/b] [i]This sparks up plenty of theory about him possibly being Atheon through a grandfather paradox, being dead or being transformed into something as terrible as Atheon but that's another theory with not much to go on it right now[/i] Edit: Sources: [i]Praedyth's Door:[/i] http://db.destinytracker.com/grimoire/allies/legends-mysteries/mystery-praedyths-door [i]The Aegis[/i] http://db.destinytracker.com/grimoire/activities/raids/relic-the-aegis [i]The Vault of Glass (Raid card)[/i] http://db.destinytracker.com/grimoire/activities/raids/vault-of-glass [i]Pahanin Errata[/i] is another. Updating sources as I go. Gotta dig for Grimoire card names.