There is an unidentified non-corporeal entity on board, though it seemed to only have been witnessed by children. This could have been brought about by situational mass hysteria but it might be worth looking into.

There's also a dragon on board. [That my boyfriend rode.] I don't believe it has been located yet.

Rather than opening up a situation where Harper might have to follow through with those threats or Mr. Eames has to defend his inmate, I would recommend those with relatively trustworthy inmates, if willing, provide Dr. Crane and Dr. Lewis some additional protection for the next two weeks.