"Its called a Silent, its an alien that's part of an organisation devoted to killing me before I can answer a question that must never be answered," the Doctor spoke before glancing towards Robin and shrugging, as if to say 'its a long story', before he continued with his explanation. "Its a religious order that involves humans and aliens alike, but this lot form a large majority of their ranks."<br/><br/>The Doctor took a few steps towards the creature. It made no attempt to move or engage the Doctor. It simply stared at him with its cold still eyes and let out the echoing sound of what was possibly its breathing.<br/><br/>"The Silents are memory proof. The moment you look away you forget that they were ever there," the Doctor said whilst tilting his head as he gazed up into the creatures eyes.<br/><br/>"But you know whats most annoying about these lot Robin?" The Doctor said as he quickly glanced back at her. "They are absolutely rubbish at holding up a decent conversation. You ask them a questions and all they do is stare and make that silly noise. I'm really hoping that this stowaway is the chatty one of the lot, because I really don't like talking to myself."<br/><br/>"Well..." The Doctor's voice trailed off as he grinned up at the creature, "...maybe that's not entirely true. So are you the one who implanted the beeping in Robin's head? Just why have you been manipulating us? And how is that old bat with the eye patch?"<br/><br/>The alien remained quiet for a moment, then eventually it spoke with its haunting strained voice.<em>"She is no longer our ally. My mission was given to me by another."</em>