"I wondered if that had occurred to you." Derech frowned. "That doesn't bother me. What does bother me is that I know where you want to go. We tried it once, remember? We ran for our lives across that damned desert. Four solid days and nights." He shivered.
"Send me as far as Barrakesh. I can disappear there, join a southbound caravan. I intend to go alone."
"If you intend to kill yourself, why not do it here in comfort and among friends? Let me think," Derech said. "Let me count my years and my treasure and weigh them against a probable yard of sand."
Flames hissed softly around the coals in the brazier. Outside, the wind got up and started its ancient work, rubbing the house walls with tiny grains of dust, rounding off the corners, hollowing the window places. All over Mars the wind did this, to huts and palaces, to mountains and the small burrow-heaps of animals, laboring patiently toward a city when the whole face of the planet should be one smooth level sea of dust. Only lately new structures of metal and plastic had appeared beside some of the old stone cities. They resisted the wearing sand. They seemed prepared to stay forever. And Carey fancied that he could hear the old wind laughing as it went.
There was a scratching against the closed shutter in the back wall, followed by a rapid drumming of fingertips. Derech rose, his face suddenly alert. He rapped twice on the shutter to say that he understood and then turned to Carey. "Finish your wine."
He took the cup and went into another room with it. Carey stood up. Mingling with the sound of the wind outside, the gentle throb of motors became audible, low in the sky and very near.
Derech returned and gave Carey a shove toward an inner wall. Carey remembered the pivoted stone that was there, and the space behind it. He crawled through the opening. "Don't sneeze or thrash about," said Derech. "The stonework is loose, and they'd hear you."
He swung the stone shut. Carey huddled as comfortably as possible in the uneven hole, worn smooth with the hiding of illegal things for countless generations. Air and a few faint gleams of light seeped through between the stone blocks, which were set without mortar as in most Martian construction. He could even see a thin vertical segment of the room.
When the sharp knock came at the door, he discovered that he could hear quite clearly.