Postmark Ganymede

Postmark Ganymede is a science fiction novella by Robert Silverberg, published in the mid-20th century. It follows Hal Preston, a former Space Patrol officer turned postal worker, as he delivers mail to the Ganymede Colony on Jupiter's moon. The narrative explores themes of dignity and resilience as Preston confronts the dangers posed by iceworms threatening the colony. His journey from disgrace to heroism highlights the significance of duty and resourcefulness in challenging circumstances.