His addressee continued to weep silently.

After awhile it occurred to Captain DeCastros that what he was doing was expressly forbidden in the Rules of the Way, Section 90-G, and might, in fact, get him into a peck of trouble. So he got up, helped Mr. Wordsley to his feet, and began to brush him off.

In a kindly voice he said, "You must have heard of Avis Solis."

"I don't seem to remember it," Mr. Wordsley said.

"It's a solitaire. One of those planets which depend upon dark, dwarf, satellite suns for heat, you know. It is almost always in eclipse, and I, for one, have always been glad of it."

"Why is that?" said Mr. Wordsley, not really caring. His chest was giving him considerable pain.

"Because it holds the darkest of memories for me. I lost a brother on Avis Solis. Perhaps you have heard of him. Malmsworth DeCastros. He was quite famous for certain geological discoveries on Titan at one time."

"I don't think so."

"You need not be sorry. The wretch was a murderer and a bad sport as well. I need not append that my brother and I were as unlike as night and day—though there is no night and day proper upon Avis Solis, of course. I imagine you would like to hear the story. Then you will undoubtedly understand how it is that I was so upset a moment ago by the sight of Avis Solis, and forgive me."

Mr. Wordsley nodded. A birdlike, snake-charmed nod.