"Did she ever talk of revisiting the place?"
"No."
"Or get letters from it?"
"Not to my knowledge."
"Thank you. I should like to think over the matter a little now. If the cottage is permanently deserted we may have some difficulty; if on the other hand, as I fancy is more likely, the inmates were warned of your coming, and left before you entered yesterday, then they may be back now, and we should clear it all up easily. Let me advise you, then, to return to Norbury and to examine the windows of the cottage again. If you have reason to believe that it is inhabited do not force your way in, but send a wire to my friend and me. We shall be with you within an hour of receiving it, and we shall then very soon get to the bottom of the business."
"And if it is still empty?"
"In that case I shall come out to-morrow and talk it over with you. Good-bye, and above all do not fret until you know that you really have a cause for it."
"I am afraid that this is a bad business, Watson," said my companion, as he returned after accompanying Mr. Grant Munro to the door. "What did you make of it?"
"It had an ugly sound," I answered.
"Yes. There's blackmail in it, or I am much mistaken."