"As a creature from another planet," Mrs. Van Dyk continued, "I feel very honored in having Mr. Zzyx as a guest in my house."

Henry sighed gustily, and said: "Very friendly of you, Mrs. Van Dyk."

And then the Bishop said: "Well, let's push on to the opera."

The Metropolitan-Civic Opera House was packed that night with one of the largest crowds in its history. I was convinced upon our arrival that the throng was there, not to hear Verdi's opera "Otello," but to see Mr. Zzyx. The evening newspapers had heralded our coming, and we encountered a large crowd outside the opera house, and were met by a barrage of cameramen's flashlights as we entered. Once inside, the crush about us was so great, we had considerable difficulty in reaching Mrs. Van Dyk's box, in the parterre. Although grand opera now was democratized, the "diamond horseshoe" still remained. Opera, I'm afraid, will always remain the pet hobby of the fashionably rich, just as racing will ever be regarded as the sport of kings.

Two uniformed city policemen stood on guard, in the corridor, outside the box. Mrs. Van Dyk, regal in black velvet and sparkling with jewels, occupied the corner nearest the stage. Mr. Zzyx sat in the other corner, with Henry sitting between. Behind them, Bishop Buckingham was sandwiched between Lady Gwynne and Jane, while I hovered, standing, in the rear, too nervous to sit down. Niki was at my elbow.

We had missed the first act. Five minutes after we had settled ourselves in the box, the curtain rose on the second act. Fashionable women, like Mrs. Van Dyk, seem to make it a point to be late at the opera. I doubt if our hostess had ever heard the first act of any opera in the entire Metropolitan-Civic repertoire, during her long ownership and occupancy of the box.

During that five minutes, every eye in the house appeared to be turned on Mr. Zzyx, who, fortunately, was now in a state of lassitude, which always overtook him after a heavy dinner. Apparently undisturbed by the sensation he was causing, he devoted himself, first, to a curious scrutiny of the packed masses in the balconies, then he looked down at the arena below, and, finally, rested his gaze on the two rows of boxes, filled with superbly gowned and bejeweled women.

I was curious to see what effect grand opera music would have upon him. What little music he had heard at the castle had come from our radio, and in this he had displayed only a mild interest. His attitude toward such music as he had heard rather dispelled the theory that had been advanced, that if direct radio communication was ever established between the earth and Mars, the interchange of ideas would necessarily have to be through the medium of music, on account of the lack of a common language.

Here, at last, was a chance to try music at its best on an inhabitant of Mars. I wondered what the reaction would be. Mr. Zzyx watched the musicians curiously as they trickled into the pit, and the noise of the tuning up seemed to interest him immensely. Finally, when the house went dark, he appeared quite excited. Then the baton of the conductor rose, and the first crash of the orchestra came like a thunder-clap.

Mr. Zzyx leapt to his feet, and started to climb over the edge of the box. For a frenzied moment, I thought he was going to dive head first into the midst of the spectators below. But Henry quickly grabbed him by his swallow-tails, and pulled him back into his chair. The incident did not attract the general attention it might have done if the auditorium had not been darkened.