“Would you be willing to leave the affair entirely in my hands, Mr Kennedy? I have an idea that I might, with the assistance of a friend, be able to get hold of the book without this person Selby knowing that it has gone back into your possession. If I attempt it, however, you must not be seen anywhere in the vicinity. Any observation kept upon the old lady or upon this fellow Selby must be done by your friend, Captain Wyman. Would you be inclined to act under my directions and lie low until I communicate with you?”

“Certainly,” I answered, although not yet understanding his point.

“If there is a conspiracy, you’ll very quickly be spotted if you remain hanging about Harpur Street,” he said. “I think, if you’re prepared to pay a sovereign or two, that I can get hold of the book for you. Only it will have to be done secretly; and, in order that you should not be suspected of regaining possession of it, you must go away into the country and wait until you hear from me. We don’t want them to suspect anything, otherwise we may not be able to solve the mystery of it all.”

“I’ll leave the whole affair in your hands, Noyes, of course,” I responded. “When shall I go into the country?”

“Today. Go where you like, to some place within easy reach of town, and stay there till you hear from me. Don’t go back to Harpur Street, because it’s too dangerous. You must be recognised sooner or later. I’ll find Captain Wyman and explain matters to him. Why not run down to somewhere on the Great Northern, to Peterborough, for instance. It’s on the main line, and the first stop of the expresses to the north—an hour and a half from King’s Cross. You see I could get down quickly if I wanted to see you, or you could run up if necessary. There’s a good old-fashioned hotel—the ‘Angel.’ I stopped there once when I was after a German bank-note forger, and was very comfortable.”

“Very well. I’ll go there. That will be my address till I hear from you. Tell it to Captain Wyman, as he may want to write to me.”

After some discussion, in which he steadily refused to enlighten me further upon his scheme for getting hold of The Closed Book, we returned together by the underground railway to Charing Cross, where we parted, he to seek my friend Wyman, and I to hide myself in the small provincial town of Peterborough, where I arrived that afternoon about half-past four.

As Noyes had declared, the “Angel” was replete with old-fashioned comfort, a relic of the bygone posting-days and a centre of agricultural commerce on market-days. Except the cathedral, there is very little of interest in the town of Peterborough; for of late years it has been modernised out of all recognition. In itself it is ugly, although situated in the centre of the rich green pasturage of the Nene Valley, a busy place, where the hand of the vandal has been at work everywhere save perhaps in Narrow Street, the small, old-fashioned thoroughfare wherein the “Angel” is situated.

I spent the evening examining the interior of the cathedral, afterwards taking a stroll as far as the village of Longthorpe, and after dinner retired early, for I had not yet recovered from my swift journey across Europe.

The following day passed, and still the next, yet I could only idle there, chafing and anxious regarding the success of Noyes’s undertaking. Letters from Wyman showed that, aided by Enrico, he was still keeping observation upon the house, although he had seen nothing further of my friend the detective after his announcement of my departure.