Shelby looked down at his companion. For a time she had been strangely quiet. Could it be that there was just a hint of a troubled look on her beautiful face? The young engineer felt himself drawn to her more than ever. He wanted to know more about his new Martian acquaintance, but he disliked to ask a direct question concerning him, for he feared vaguely that it might give her offense. "Jan," he said, "you look worried. Is anything wrong?" She shook her head, slowly, absently, without looking at him. "No, I was just thinking." She paused, and then in the same absent manner she continued: "Only Hekalu Selba is back, and I thought I was rid of him." Reassured somewhat by her words, but still taking care to conceal any hint of the menace he had sensed about the Martian, Shelby asked: "What possible difference can his presence in Chicago mean to you? He seemed to me to be a very ordinary Martian nobleman--evidently supplied with plenty of money, and having no other motive in life than to enjoy himself, and perhaps to help others enjoy themselves. A perfectly harmless individual." Janice's face grew serious. "You say those things because you do not know Hekki," she said. "Shall I tell you about him? It would relieve me to share my knowledge with someone." The young man nodded but made no comment. "Two years ago," she began, "I went to Taboor on Mars to study sculpture. Not long after my arrival at school, in the company of a number of other art students, I attended a ball given at a glorious old palace in the heart of the ancient Martian quarter. Our gracious host was Hekalu Selba himself. I met him, danced with him, and talked with him. From the first he was attracted to me and I to him, and so we were often together. "Though some of his peculiar affectations were obnoxious to me, I thought that his good qualities far overbalanced his failings. He seemed always kind and considerate in his dealings with all about him; he was well informed on almost every possible subject; he painted pictures and played various musical instruments with a skill that was little short of genius, and his tales of his travels and adventures in the little-known region beyond the orbits of the minor planets could not fail to delight any listeners. Dreamer and brilliant artist--that was Hekki as I saw him then. Effeminate--yes, but brave and resourceful too.