Actually they had started out by vehicle. But it was old, cranky and ready for the junkyard. In the first flurry of sandstorm, it had clogged, burned out and died. Nothing very reliable was available in the black market without more notice.

Newlin accepted the inevitable and proceeded on foot. Perhaps they could reach the Archaeological Station at Sansurra. He was not certain if it would be inhabited at the Sandstorm season, but there was a good chance of stored food and water. Turning back to Venusport was impossible. So they went on.

Now he was confused. Directions are difficult at best on Venus, and his radio-compass proved faulty. He had only the vaguest idea where they were, and none at all where they were headed. But if he stopped too long, the shifting dunes would cover them. And if they tried to go too fast, it would be fatally easy to blunder into one of the open sink-holes of molten, radioactive metal.

He stopped and motioned the girl to rest.

She sank down, exhausted.

Newlin adjusted the throat microphones and headsets in their plastic helmets to make for easier conversation. But for a while, neither could talk. They sat and gasped, yearning for a breath of fresh, unreclaimed air. Water supplies were low, and already Newlin had established iron rations. Drinking by tubes was difficult in the helmets and the water was warm and foul.

"You're lost?" Songeen asked at last.

Newlin nodded. He produced a wrinkled, battered map. "I can't even trust the compass. I don't know where we are."

The girl took the map in her gloved hands and peered intently through her face-mask. One finger traced a tiny circle in the film of dust.

"I know," she said. "We are somewhere about here. And over there—" she indicated a direction behind Newlin—"is the city from which my people came."