If the master had indeed realized something was off and said those words with intent, then at what point did she notice?
No—considering how strange it was for her to be there in the first place, there had been far too many opportunities for her to figure it out.
The real issue I needed to focus on wasn’t the fact that she noticed.
"Why did she choose to respond in this particular way?"
With so many chances to become suspicious, it wasn’t strange for her to have figured it out.
But why had she acted the way she did in that moment?
"When the next full moon rises, go to the hilltop."