The next day, early in the morning.
Bai Xinwen rose from bed bright and early, going through the motions of meditation before practicing a set of fist techniques in the courtyard. Only then did he bound up the stairs and arrived at the guest room door, tapping lightly, "Sister, are you awake?"
"..."
"Sister, are you awake?"
"Sister?"
No response came from within, prompting Bai Xinwen to feel that something was amiss. He pushed the door open and entered to find the room empty, the bedding neat and tidy without a trace of having been slept in.
He stood dumbfounded for a moment before hurriedly calling his father. Mr. Bai also found it strange, "She's gone? Why would she leave without saying goodbye?"
The father and son pondered for a long while, sure that they had offered no slight nor sensed any conflict or dispute. In the end, they could only chalk it up to the demeanor of a true master—coming and going like the wind.