Mina broke only one courier rule in six years.
She opened the red letter.
The paper did not contain words. It contained heat.
For three seconds she stood in an alley that had not burned yet, watching tomorrow's sky turn orange above the last city walls.
The north gate fell first. Then the glass district. Then the bell tower where children tied ribbons for luck.
When the vision ended, the letter was ash between her fingers.
A clock struck midnight.
Mina had seven hours to deliver a warning nobody would believe.