It takes a second for Clara to realize he isn't beside her, and she waits until he catches up. "I'm really sorry to be the one to break it to you." And she is, this absolutely sucks. Especially because the danger never really seems to stop for significantly long stretches.

"This isn't the first time I've wound up someplace I shouldn't've, but this is the longest I've ever gone without being able to leave if I wanted," she agrees.

"Which makes me wonder if this isn't all some giant prison. A whole...prison planet. Or something. There's tons of different theories floating around."