Ok, so I was reading through the grimoire and found something very...interesting. So even BEFORE Destiny's release there had been speculations that Dragons were going to be in game, with a clip from a trailer showing a dragon in the sky. Which if you haven't looked up at the sky in Venus (during the night), you can STILL see that same shape flying in the sky. Now if you go and read the Ghost Fragment: Warlock grimoire card it is a narrative of a Warlock who has acquired a piece of vertebrae from a creature called an Akhumara. Which earlier in the grimoire sats they were hunted to extinction. He goes on to show it off, by taunting a female hunter saying "Not even the smartest Hunter or brawniest Titan could have acquired this" or something along those lines. But here is the part that gets me. The Hunter goes on to accept that challenge, and here's the crazy part. The Warlock says: "Ive just killed a Guardian.." I honestly don't know what to think of this. It hints that the Akhumara were hunted, but also hints they are alive. Which I infer that the Akhumara are Dragons. Let me know know what you guys think. This is MY theory and I hope ya'll have some great ones as well!