"There is some very deep mystery behind the facts.

Every step of my investigation convinces me of that.

The disappearance of Miss Turold does not explain everything." "She was up at Flint House on that night, and now she is not to be found.
Surely that is enough ?" "This is not a straightforward case.

It's going to prove a very complicated one.

But I have come to the conclusion that the quickest way to get at the truth is to find Sisily Turold.