In Edd's eyes, the intersection between Lann and Alia was probably just bringing back the lost little girl and then teaching her some swordsmanship.
So the Duke of the North completely didn't understand that Lann initially got involved in this troublesome matter all for the sake of his little daughter.
Edd's group, more than twenty people, all equipped with double horses for long-distance riding.
But even with two horses, humans have much better endurance than horses, and they cannot maintain progress all day long.
According to the plan, to avoid the enemy's inevitable interception, Lann's group should ideally choose the time period when the road is empty to travel.
But that's easier said than done, in reality, it's far from achievable.
In ancient lighting conditions, even city nights would make people feel as if their eyes were covered with darkness, let alone such wild roads.