Brother,
On this journey back to the south, I've faced countless dangers. When I reached the eastern Iceshard Expanse of Cangzhou, I encountered a vile man disguised as a traveling merchant. His moves resemble the Gu techniques of Umbra Palace. He spoke of using the heart's blood of passing heroes to ward off cold and quench thirst. You warned me in your letter to beware of Fu Xuanqing, who secretly learned the Gu techniques of Umbra Palace and uses others' blood to ease his own torment. It must be him. How can we allow such a villain to run rampant? I have stored over ten Fire Caltrops in a wooden barrel, and if ignited near him, he will surely be reduced to ashes! When we became sworn brothers, we vowed to be of one heart and mind, to help those in danger. If I die, it won't be a betrayal of our oath, right? Don't blame your brother for missing the Flying Blossom Sword Trial next year.
Your Second Brother, Youlin