"Yes," he answered somewhat gloomily, "but they are not exactly desirable in this case. I want to find the Knollys family innocent."

"And I. But William's character, I fear, will make that impossible."

"But this girl? Who is she, and where did she come from? No girl has been reported to us as missing from this neighborhood."

"I supposed not."

"A visitor—But no visitor could enter this house without it being known far and wide. Why, I heard of your arrival here before I left the train on which I followed you. Had we allowed ourselves to be influenced by what the people about here say, we would have turned the Knollys house inside out a week ago. But I don't believe in putting too much confidence in the prejudice of country people. The idea they suggested, and which you suggest without putting it too clearly into words, is much too horrible to be acted upon without the best of reasons. Perhaps we have found those reasons, yet I still feel like asking, Where did this girl come from and how could she have become a prisoner in the Knollys house without the knowledge of—Madam, have you met Mr. Trohm?"

The question was so sudden I had not time to collect myself. But perhaps it was not necessary that I should, for the simple affirmation I used seemed to satisfy Mr. Gryce, who went on to say:

"It is he who first summoned us here, and it is he who has the greatest interest in locating the source of these disappearances, yet he has seen no child come here."

"Mr. Trohm is not a spy," said I, but the remark, happily, fell unheeded.

"No one has," he pursued. "We must give another turn to our suppositions."

Suddenly a silence fell upon us both. His finger ceased to lay down the law, and my gaze, which had been searching his face inquiringly, became fixed. At the same moment and in much the same tone of voice we both spoke, he saying, "Humph!" and I, "Ah!" as a prelude to the simultaneous exclamation: