The Green Odyssey
The street led always downward, for the city had been built on the foothills of the mountains. It wandered here and there and gave Green plenty of time to think.
The trouble was, he thought, that if the two imprisoned men at Estorya were to die before he got to them he'd still be lost. He had no idea of how to pilot or navigate a spaceship. He'd been a passenger on a freighter when it had unaccountably blown up, and he'd been forced to leave the dying vessel in one of those automatic castaway emergency shells. The capsule had got him down to the surface of this planet and was, as far as he knew, still up in the hills where he'd left it. After wandering for a week and almost starving to death he'd been picked up by some peasants. They had turned him in to the soldiers of a nearby garrison, thinking he must be a runaway slave on