The envelope arrived without a stamp.
Leo found it on his desk when he returned from lunch.
His name was written in black ink.
Inside was a single sheet of paper.
The date printed at the top was tomorrow.
Leo smiled. Someone was playing a joke.
Then he read the first sentence.
"Tomorrow at 10:15, you will drop your coffee on the office floor."
The next morning, Leo carried his coffee carefully.
At 10:14, nothing had happened.
At 10:15, someone bumped into him.
Coffee spilled everywhere.
Leo froze.
He read the rest of the letter.
It contained small predictions about his day, all of which happened exactly as described.
At the bottom was a warning.
"At 6:20 this evening, you will have the opportunity to prevent an accident. Do not ignore the person wearing a yellow jacket."
At 6:18, Leo saw a man in a yellow jacket standing near a busy crossing.
The man suddenly dropped his phone and stepped toward the road while looking down.
Leo shouted.
The man stopped.
A bicycle rushed past where he had been standing.
That night, Leo found another envelope.
This time there was no date.
Inside was a single sentence.
"The future is not something you read. It is something you change."
Leo looked through the window at the city lights.
For the first time, he wondered whether knowing tomorrow mattered less than choosing what to do today.