"This last robbery at old Frick's is a laughable affair." I then burst into long and hearty laughter, which evidently affected Jurgens's nerves in the most unpleasant manner.

"Haven't you heard about it? Well, as you know, old Frick possesses a whole lot of curiosities, and many of them are of gold, silver, and precious stones, and all are very valuable. People are always coming there, some as guests of the house, and some to visit his collection. Old Frick got tired of always having to watch them so carefully, and so he had imitations made of all his most valuable objects,—gilt-brass mounts instead of gold, and glass instead of precious stones. This is, however, a great secret, so much so, that even his best friends think they are the real things they see, while these are lying securely in the cellar of the bank."

"Eh, what do you say?" The old fellow stretched out his neck like a vulture.

"Yes, indeed—but listen: a few days ago the most costly of all his curiosities disappeared; I fancy it was a black diamond in gold setting. It was called the 'black tortoise.' We expect the thief has gone abroad with his treasure. Ha! ha! just sixpenny worth of brass, and half a crown's worth of cut glass!"

I again burst into a peal of hearty laughter. The old man sank back, but tried to raise himself, gasping for breath. I thought he was going to have a fit, and in a minute I got his necktie undone, and rang for the servant.

We soon brought him round again; he was a tough old bit of humanity, that I must admit.

I knew now what I wanted to know; the lawyer had the diamond in one of his hiding places. The difficulty was to get him to give it up without being obliged to resort to unpleasant means.

For this reason I took leave, as soon as I saw he had got over his little attack, and without suggesting anything as to what the cause might be.

The servant followed me into the hall to open the door for me.

Having reached the hall, I asked hastily, "Do you know who I am?"