He shared his inference with Yan Huan.
Yan Huan found it very convincing, but there were two dubious points that baffled her, "Brother, you said that young man knew where the letter was supposed to go, why didn't he directly hand it over to you or Commander Ning, or someone else for that matter? Why did he insist on delivering the letter himself?"
Since he had thought of hitching a ride to the military camp, why hadn't he thought of giving the letter to someone else?
Why such a stubborn insistence on delivering the letter himself?
And why was he so secretive about his own actions and whereabouts?
"Um. I've been pondering the issue you mentioned. It indeed is intriguing."
"There's another issue, I wouldn't need to mention it, for you probably already know what I am about to say," Yan Huan pointed at the parts of the letter that were clearly crossed out with a pen and said, "Tell me, what's this? Why is it crossed out?"
