But before he could get his jumbled thoughts into order, a voice addressed him from behind, gravely, quietly. "Rather confusing, eh, Lieutenant?" Dan whirled to look into the face of Garland Smith, another of the Libra's passengers. He said, half pettishly, "You, Captain? What are you doing up at this time of night?" The one-time officer of the SSP, now on the retired list, shot a swift glance at the glittering panorama visible through the quartzite plates. "Night, Lieutenant? Night and day are nothing but quirks of speech out here, sleep a matter of habit. When you have lifted gravs as many years as I have—" He sighed. "I was restless. And perhaps it is just as well. I witnessed the same thing you did. And strange things are going on aboard the Libra." Mallory said cautiously, "Perha

