I believe that in this part there are some things that are clear, within what can be done. For example what is the reason why she is on the expedition, that the creature you saw is real and if not real you all share the same delirium. Equally, it is not clear what that creature is trying to do, beyond bringing them to the surface! I think that from now on events will trigger clashes between them and madness. Nice Sunday, @alexbeyman.