About the book: 2017 / "In publishing these short essays on the numerous investigations in which, thanks to the special talents of my friend, I have been involved as a listener, and then, as a character, I, quite naturally, focused on his successes, omitting his failures. And not so much for the sake of his reputation - his energy and resourcefulness acquired special strength when he was at a loss - but because where he failed, too often no one else succeeded, and the story remained forever unfinished. However, when he made a mistake, sometimes the truth was still revealed. I have notes of half a dozen mysteries of this kind, and among them the "Adventures with the Musgrave Ritual" and the one I am about to tell about now are of the greatest interest.…»