46212 'The devil's agents may be of flesh and blood, may they not?
46213 There are two questions waiting for us at the outset.
46214 The one is whether any crime has been committed at all, the second is, what is the crime and how was it committed?
46215 Of course, if Dr Mortimer's surmise should be correct, and we are dealing with forces outside the ordinary laws of Nature, there is an end of our investigation.
46216 But we are bound to exhaust all other hypotheses before falling back upon this one.
46217 I think we'll shut that window again, if you don't mind.
46218 It is a singular thing, but I find that a concentrated atmosphere helps a concentration of thought.
46219 I have not pushed it to the length of getting into a box to think, but that is the logical outcome of my convictions.
46220 Have you turned the case over in your mind?'
46221 'Yes, I have thought a good deal of it in the course of the day.'