“I wish you to go. Since I cannot be there myself, I know of no one else sufficiently up in the affair to conduct it to a successful issue. You see, it is not enough to find and identify the girl. The present condition of things demands that the arrest of so important a witness should be kept secret. Now, for a man to walk into a strange house in a distant village, find a girl who is secreted there, frighten her, cajole her, force her, as the case may be, from her hiding-place to a detective’s office in New York, and all without the knowledge of the next-door neighbor, if possible, requires judgment, brains, genius. Then the woman who conceals her! She must have her reasons for doing so; and they must be known. Altogether, the affair is a delicate one. Do you think you can manage it?”

“I should at least like to try.”

Mr. Gryce settled himself on the sofa. “To think what pleasure I am losing on your account!” he grumbled, gazing reproachfully at his helpless limbs. “But to business. How soon can you start?”

“Immediately.”

“Good! a train leaves the depot at 12.15. Take that. Once in R——, it will be for you to decide upon the means of making Mrs. Belden’s acquaintance without arousing her suspicions. Q, who will follow you, will hold himself in readiness to render you any assistance you may require. Only this thing is to be understood: as he will doubtless go in disguise, you are not to recognize him, much less interfere with him and his plans, till he gives you leave to do so, by some preconcerted signal. You are to work in your way, and he in his, till circumstances seem to call for mutual support and countenance. I cannot even say whether you will see him or not; he may find it necessary to keep out of the way; but you may be sure of one thing, that he will know where you are, and that the display of, well, let us say a red silk handkerchief—have you such a thing?”

“I will get one.”

“Will be regarded by him as a sign that you desire his presence or assistance, whether it be shown about your person or at the window of your room.”

“And these are all the instructions you can give me?” I said, as he paused.

“Yes, I don’t know of anything else. You must depend largely upon your own discretion, and the exigencies of the moment. I cannot tell you now what to do. Your own wit will be the best guide. Only, if possible, let me either hear from you or see you by to-morrow at this time.”

And he handed me a cipher in case I should wish to telegraph.