Cirrus@Austlit

'When a new boy named Sammy Sams arrives at school, the school bully gives him a very hard time. But when the new boy discovers an unidentified species of beetle, he becomes respected by the school - with the exception of the bully, of course. So when the school tries to show the beetle to the authorities, the bully steals it and expresses a desire to pass it as his own discovery. However, he gets bitten; throughout the following day at school, his skin starts to become see-through. When it spreads to his entire body, he becomes a sideshow; embarrassed, he spends 10 years away from civilisation. The bully decides to commemorate the tenth anniversary of his exile by eating the beetle; the beetle bites him again, and he kills it. Afterwards, the bully's skin returns to normal and he decides to return to society, only to discover that everyone else in the world has developed see-through skin.' (https://en.wikipedia.org/wiki/Undone_(short_story_collection))