Given that he's speaking to one of said people with unfinished business, that's a pretty good assumption. However, she has to shake her head no.

"Not that any of us have heard of. Those who have left and returned have mentioned nothing of the sort, and even if there were those who escaped and stayed away, I doubt we would be told."

Best to let the otherworlders think they couldn't leave under their own power, or everyone would be trying to do it.

"Those in charge have not been inhospitable, but they have not been entire forthright with us, either. It's difficult to tell what they might be hiding."