"I thought not. The clue is outside the Knollys house, not in it, Miss Butterworth, for which, of course, you are not to be blamed or your services scorned. I have no doubt they have been invaluable in unearthing a secret, if not the secret."

"Thank you," was my quiet retort. I thought his presumption beyond all bounds, and would at that moment have felt justified in snapping my fingers at the clue he boasted of, had it not been for one thing. What that thing is I am not ready yet to state.

"You and I have come to issue over such matters before," said he, "and therefore need not take too much account of the feelings it is likely to engender. I will merely state that my clue points to Mother Jane, and ask if you have found in the visit she paid at the house last night anything which would go to strengthen the suspicion against her."

"Perhaps," said I, in a state of disdain that was more or less unpardonable, considering that my own suspicions previous to my discovery of the real tragedy enacted under my eyes at the Knollys mansion had played more or less about this old crone.

"Only perhaps?" He smiled, with a playful forbearance for which I should have been truly grateful to him.

"She was there for no good purpose," said I, "and yet if you had not characterized her as the person most responsible for the crimes we are here to investigate, I should have said from all that I then saw of her conduct that she acted as a supernumerary rather than principal, and that it is to me you should look for the correct clue to the criminal, notwithstanding your confidence in your own theories and my momentary hesitation to assert that there was no possible defect in mine."

"Miss Butterworth,"—I thought he looked a trifle shaken,—"what did Mother Jane do in that closely shuttered house last night?"

Mother Jane? Well! Did he think I was going to introduce my tragic story by telling what Mother Jane did? I must have looked irritated, and indeed I think I had cause.

"Mother Jane ate her supper," I snapped out angrily. "Miss Knollys gave it to her. Then she helped a little with a piece of work they had on hand. It will not interest you to know what. It has nothing to do with your clue, I warrant."

He did not get angry. He has an admirable temper, has Mr. Gryce, but he did stop a minute to consider.