"Third self? How many selves..." She shook her head. "Never mind. You wouldn't know if you're from the past, would you?" Wow. Okay, this was a lot to take. "Right. Name. You asked for my name. Bill. Bill Potts. Oh! I get it now! It wasn't because of my smile at all, was it. You called me in because you remembered me. From this. And that's why you went to such bother for those photos too. I wasn't ever just another chips girl, was I, Doctor?" She grinned. "All this time you've known me, and you never let on." She smacked his arm. "I'm going to get you back for this, you know. Oh! What about Nardole? He here? He's known this whole time too then?"