Dude, You can do that. That really easy. It only 80 words. Plus it's a diary so it's not complex. You can literally make it up too. You could say your first day at McDonald's or first day working at a candy store.
In "An Occurrence at Owl Creek Bridge", the meaning that is conveyed by the words "then all is darkness and silence!" is that Farquhar has been hanged.
Answer:
when there was not a cloud anywhere?