Zhang Yun joined forces with Zhou Gu and, under Zhou Gu's instructions, deliberately released a Dawei spy.
Upon hearing that the spy reported Daliang had over 600,000 troops, Helan Jue's face changed; he instantly asked, "Is this confirmed?"
"It's definitely true," the spy replied.
"Why only you return? What about the others?" Helan Jue asked.
The spy bowed his head, "The rest either died or were captured. I wouldn't have escaped either. It appears that the Daliang deliberately let me return to relay this news."
Those who become spies are not without brains; they are fully aware of their own abilities. In such a besieging kill scenario, he shouldn't have returned. But, somehow he did.
Helan Jue, with a crestfallen face, immediately went to find Crown Prince Yuan Zhao.
On hearing the news, Yuan Zhao became quiet, then asked, "Bring that spy to meet me."
Helan Jue ordered for the spy to be brought before Yuan Zhao.