I doubt I'm the only one who's found this hidden room but it's an area that really isn't accessible unless you really look, you make your way through the air duct to enter a lounge that has a round table and on the table is a book that you can investigate, the only odd thing is the investigation seems to be broken like you're not supposed to be here yet when you hold square it glitches out. Anyways I finally am able to investigate and it talks about a one "Ana Bray"... does anyone have information they can share am I missing something on who Ana Bray is Is she important from the first destiny? That being said this is a cool find EDIT: I thought it would be important to add that the TV in this room says "Daico" the creators of Jade Rabbit? EDIT: I have attached a YouTube video of me showing you how to get there. (First part shows that you can't jump up there so you will need to complete the Floor is Lava challenge) EDIT AGAIN LOL: so turns out there have been a bunch of people find this secret but it's new to me as I didn't even know about it nor have I seen it in the forums so I'm still curious and open to hear some speculation what this rooms gonna be!!!