Inn

Joseph hadn't stopped the carriage anywhere until they reached an old inn in that small village at half-past seven in the evening. But he asked them whether Nina needed a few minutes to come out and stretch her legs, but she didn't like that idea, she just wanted him to go as far as he could as if she's running away, and as a result, they reached the Inn two hours earlier. 

He didn't ask Nina the reason for this travel, as a diligent servant to the palace, he couldn't question that even though he got that temptation a couple of times. As far as he saw, she's a kind, young woman who's brave enough to travel like this.

From what he heard from Mr. Fareham, Nina is going to see her sister who gave birth recently and so that explains it all.