"I know you do, but I can't give them to you," the Doctor replied without hesitation. He was busy flicking switches on the controls of the TARDIS, his gaze fixed on them as he worked the controls with that odd sense of randomness. "You have no idea how much that has been bothering me Robin. A large part of me just wants to leave it alone."<br/><br/>He lifted down the periscope and gazed through it before bashing at two red buttons and turning a green valve. The TARDIS began to let out the soothing sounds of travel as it took off down the Time Vortex.<br/><br/>"Do you know what happened last time someone had a consistent beat inside their head?" The Doctor asked, not turning away from the periscope as he addressed Robin. "I'll tell you what happened, I got killed, the human race went extinct for twenty four hours and all of creation nearly got pulled apart as my lunatic brethren decided to pull the entire Time War onto the face of Earth."<br/><br/>The Doctor pulled away from the periscope and finally turned to Robin with a grim look on his face. "There's a chance that what you have in your head is a beacon, implanted by my people as part of some sort of insane plot to end the Time War. Goodness knows why, but it could be. So forgive me if I'm a bit hesitant to check it out."