The general guarding the border was the closest to Dongxiao and already knew that Qu Chuo was dead. In any case, there was no evidence from the dead, so he blatantly lied. He had already sent people 800 miles away to inform the Emperor of Xue Yan's matter; anything he said wouldn't hurt him.
They hadn't even seen Qu Xiao yet, so the Dongxiao army didn't believe him. The army still didn't retreat, so the two armies were still in a stalemate.
The general guarding the border was not in a hurry. When the envoy team sent someone back to Dongxiao to report that they had indeed found the person, these soldiers would naturally retreat.
The Dongxiao Country's diplomatic team only found out that Qu Xiao had found them when it was almost dark. Since it was late, there was no rush to meet up with Qu Xiao. Therefore, they only got up early the next morning. When the large group of people passed by Xinyuan County in Yiran, they met up with Qu Xiao at the posthouse.