( There is a pause following the question - right with a bang like the Doctor is prone to do. All of it is complicated, of course, because nothing can ever be simple or straightforward. She walks alongside him, trying to figure out how to answer while being honest and- )

I don't know.

( That's the most truthful answer. )

When I showed up here the first time, it was after escaping the Underworld - a feat I didn't think would be possible. I lived in reality outside of the Underworld for awhile, but Hades was always chomping at my heels.

( Especially at the end, those last few moments. )

Turns out I had a whole new purpose in the real world. ( She's not sure if she should say the rest, if she should detail what happened before this place came into view again. Honesty, right. ) ...he found me right before I came back here. I was getting dragged down. So... yeah. I don't know.