This is it. Next time, it's Act 2: The Fisherman!
Act 1
The Sea
Scene 5
If Katara could measure time in an hourglass she would have said they were out at sea for days after Zuko's infection pulled him into fever.
She would have stared at each falling grain and wondered which grain would mark the prince's death, and which would mark hers.
She would have been able to cling to the illusion of reaching out and turning the hourglass topsy-turvy one more time, setting back the clock and preventing their deaths one more hour.
She would have been able to hold time in her hands and chuck it into the damn sea where it couldn't hurt them anymore.
But Katara did not have an hourglass.
All she had was the sun and the moon, and the sun told her that it was the next morning by the time they were found.