Every detail points to one painful, dubious situation.

On the other hand, she presents to you the manner and aspect of a woman who is absolutely not dubious, and who is merely anxious on the one point a dubious person would be indifferent to.

Isn't it, then, possible that over-wrought physical condition may have driven her to the belief that she is hiding from danger." Dr.Warren was evidently following the thought seriously.
"She said," reflecting, "that all that mattered was that she should be safe.

'I want to keep safe.' That was it.

You are very enlightening, Mary, always.