The Northern part of the continent was where the Chu Empire and the border separating the kingdoms were located. Renowned for it being the place where beasts and wild animals breed and live, it was surely not a suitable place that most people would choose as their favorite.
However, it was the perfect place for an army to stay. The harsh cold, harsh wind that could make any man wish they didn't sign up for the military, the lack of good food, the lack of beautiful women to satiate their pent-up sexual desires, and the bloodlust that they would immediately fell and make their blood heat up. Indeed, the North was the best place to test a man.
Quickly after burning the letter to ashes, Lin Xiaofei got her own paper and started to dab the ink on it, writing vague words that any strugglers who tried to take the letter and read it in between wouldn't understand.