Postmark Ganymede

** "Postmark Ganymede" by Robert Silverberg is a science fiction story where Hal Preston, who used to be a respected Space Patrol officer but is now a lowly mail carrier, delivers mail to a colony on Ganymede. The story focuses on concepts like self-respect, meaning, and toughness as Preston faces his ordinary new life and the risks of traveling in space. When he gets to the Ganymede Colony, Preston learns that gigantic iceworms are attacking. Driven to get the mail delivered no matter what, Preston uses his abilities to help the colony as a daring plan unfolds, creating a way through the dangerous iceworms to get the mail through. We watch as Preston changes from a disgraced mailman into a courageous hero, highlighting how important it is to be responsible and inventive when things get tough. **