The Doctor listened patiently to her responses and problems, the smile on his face growing a little brighter every minute. After she was finished he didn't hesitate to step forwards and pull her into a tight hug that took her off her feet.<br/><br/>"After saying exactly what I was hoping you would say you can have one of these," he said before twirling on the spot with her in his arms before setting her down onto the ground and beaming at her with delight. "And to answer your first question, yes, it is flipping cool. Bizarre, horrifying, shocking and amazing, but also flipping cool."<br/><br/>He let go of her shoulders and stepped back scratching his chin as he thought over her other questions. His apprehension seemed to have faded away and now he looked over her curiously, wrapped in deep thought. "Those walls that surround your head are a reflex. Your powers seem to be driven by a certain amount of instinct. It may take a while for you to learn how to drop them......but that won't be necessary, because I know what's inside your head."<br/><br/>He crossed his arms over his chest and grimaced at Robin. It looked as if he was bracing himself, much like a regular Doctor would before he broke terrible news to an unfortunate patient.<br/><br/>"What I heard in your head is something called the Eternal Code. You wouldn't know anything about it even with your memories intact, because it happened during the Time War," the Doctor explained, his voice sounding as hollow as it always did when he mentioned the foulest war in history. "The Eternal Code is a Time Lords version of Enigma Machines, specially encrypted telepathic messages that even the Daleks couldn't decode, because they could only be heard by Time Lords and decoding the messages required the use of a TARDIS."<br/><br/>"At some point during our travels the message was sent to you. The chameleon arch, the device that turned you from a Time Lord to a human, couldn't suppress the power of your telepathy, so it leaked over into your human form, giving just enough power to pick up the signal. But your head couldn't make sense of it. Instead it came out as an irritating beeping," the Doctor explained whilst indicating to her forehead with his fingers. "Now that you're a Time Lord the message is buried quietly in the back of your head, but once you get within range of a TARDIS it will activate and continue to repeat until its extracted through the TARDIS's own psychic force."<br/><br/>"So can understand why I am afraid Robin. The Eternal Code was an invention from the Time War. It could mean that something worse is on the horizon. Perhaps it could mean that the Time War isn't over and that soon it may spill into this world," the Doctor said, sounding more crestfallen by the minute.<br/><br/>The worry was evident in his eyes. He didn't need to explain why that would be so bad, the reason was obvious.<br/><br/>If the Time War leaked into their world, everything would die.