[A retort is on his tongue about how they weren't just any Earth girls, but he bites it back. No point in antagonizing the Master. Not in the middle of a story, anyway.]

Anywaaay, the clock robots kept opening all these windows in time, all along Reinette's life, because for some reason they had decided they needed her brain to replace their ship computer, but that she had to be the same age as the ship before she was considered 'complete'. I promised her I'd come for her when she needed me, but I almost didn't make it. In order to ensure Reinette's continued safety, I knew I had to break one of the windows, which would prevent anyone, including me, from getting back.

[He sighs, rubbing the back of his head.]