The words came with a rush, and the question was plainer than Gimblet cared to answer. “I don’t think anything,” he replied, still rather testily, “but I must consider everything and anything possible. At present it is all mere suspicion, but things look rather black, though not only against Sidney. As a matter of personal opinion I incline to the idea that that young man is innocent; still, I can’t admit his character cleared on that account. I’ve no evidence worth mentioning one way or the other.”

“Who else are you thinking of, when you say things look black against others than Sidney?” asked Sir Gregory eagerly. “I have thought myself, that, perhaps, the servants——”

“Mrs. Vanderstein’s servants? I don’t think they can have anything to do with it. It would have been impossible for one of them to have got rid of the two ladies, while they were at home, without the knowledge of the others. And we can hardly contemplate the possibility of an organised conspiracy at present. The chauffeur and footman, you think, may have disposed of them by some means when they were supposed to be driving to the opera? But the chauffeur is an old and trusted servant, and, moreover, the box opener says that the ladies occupied their box. There is also the night watchman, who is an ex-corporal of the Foot-guards, and whose character is of the best. Suppose that, on their late return to the house, he let them in quietly, as it was his business to do, and then killed them both in order to possess himself of Mrs. Vanderstein’s jewels. The difficulties that would then confront him before he could dispose of the bodies would be well nigh insurmountable, even if it were possible for him to silence two women simultaneously so effectively as to prevent anyone in the house from being aroused. The probabilities are strongly against the night watchman’s having anything to do with it; and, indeed, I think all the servants may safely be left out of the reckoning.”

“Then who can have harmed them?” Sir Gregory asked.

“I hesitate to mention anything more to you, Sir Gregory, after your recent injudicious conduct. However, I don’t think you’d be able to warn the other person upon whom suspicion may fall. It is odd that it should not have occurred to our friend Chark that Sidney is not the only one who would benefit by Mrs. Vanderstein’s death,” said Gimblet.

“Why, what do you mean; who would benefit?”

“Surely you know. It was you that told me.”

“I told you?” Sir Gregory looked the picture of bewilderment. “I don’t know anyone, except, of course, Miss Turner, who would be a penny the better if my dear friend should die.”

“Exactly.” Gimblet, his chin on his hand, gazed over Sir Gregory’s head at his newly-discovered Teniers, which he had found time to hang up in a central position. “A little further to the right, and it would be still better,” he thought.

But Sir Gregory was bounding in his chair. “Miss Turner! Impossible! A young girl, sir! You don’t know what you are saying.”