A bit far-fetched

They left at the first sign of light. 

Chu Changying was uncharacteristically quiet the entire time and refused to eat or rest when she should.

At the pace they were traveling they would probably reach Xianggu in three days but Chu Changying was frantic and wished to travel faster on her flying sword. A method of transport that wasn't possible for Yu Yanlin, at least not with his current guise. 

"Then I'm going ahead," she said, "I can't just sit around here and wait while knowing that I can get there faster!"

"Hey, breathe for a moment, okay?" Zhang Wang sighed, trying to get a grip of her shoulders to stop her from pacing around back and forth.