Explore "Sense of Obligation" by Harry Harrison on Textopian. Read with annotations and highlights.
Just before sunset Brion heard clanking, and the throbbing whine of a sandcar's engine coming from the west.
With each second the noise grew louder, coming their way. The tracks squeaked as the car turned around the rock spire, obviously seeking them out. A large carrier, big as a truck. It stopped before them in a cloud of its own dust and the driver kicked the door open.