CHAPTER X.
THIS HELPS ME.
The three men were now standing grouped about the table with its scattered books and manuscripts, and Ferrars bent toward Robert Brierly, putting a hand upon his shoulder.
"Brierly," he said, "sit down; this thing is using up your strength. I will tell you what I think of all this, and then we must lock up this place for a little while just as it is." And as Brierly obediently dropped into the chair which the doctor quickly placed beside him, the detective resumed.
"Since yesterday half a dozen theories have suggested themselves to my mind as possible explanations of this very daring murder, for I am now fully convinced that it is nothing less; but I make it a rule never to accept, much less announce, a belief, until I have established at least a reasonable series of corroborative circumstances.
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