Verified answer

It was the one to whom it delivered that box. "What has happened?", - he thought. Having looked down, directly under this article, he saw number of the private detective which was engaged in this business. It was the person of average years living in London. Last week our hero heard how his neighbor praised some detective that that helped it to deal with his affairs. "Probably it it", - Mr. X thought. The next morning the detective called at a door to Mr. X. "I welcome, Mr. Holmes!", - Mr. X friendly told. And, having invited the guest to enter, he began to tell him about an event hastily. Having attentively listened to Mr. X, Holmes started leading him. It helped it to learn everything that is necessary to start investigation. - "What it was colors?", - "Black". "Hmm, what in a black box?", - Holmes thought aloud. "Alexander Druz will answer!" - the voice from the street reached. Our heroes, having pretended that heard nothing, continued the thoughts.

At that time the police of England knew only that this person was attacked by robbers, and, having stolen from him an artificial limb of the left hand and having hit it with a heavy subject of the head, disappeared. But the call of Mr. X cleared some details. It appeared that robbers wanted to steal only a black box from that person. But it a deadly grasp held this fatal box, and robbers, without having calculated force, snatched out a box together with a hand. "Everything rises on the places", - Holmes murmured. Now it became clear to us and here the gone hand, but what after all was in this black box? Probably that it and remains a riddle. To be continued..