"Boom!"
Externalized Qi burst in all directions. Flames shot into the sky, and the massive shockwave sent dust and shattered flesh flying in every direction.
Zhang Xiu's ultimate attack swept across a huge area and heavily intimidated the Cao Army, but instead of showing the slightest joy, Zhang Xiu furrowed his brows deeply.
If they had been out in the open, this ultimate attack could have killed two or three hundred people even under the suppression of the cloud energy. This time, however, a rough glance showed that it had only killed a little over a hundred—half as many!
"Clap, clap, clap!"
Zhang Xiu raised his spear and swept aside three incoming arrows. His expression turned solemn as he watched the space he had cleared become filled once more with charging soldiers from the Cao Army. He said to Zhang Ren with a grave expression, "Senior Brother, we can't keep fighting like this. It's wasting too much externalized Qi!"
"You take the left, I'll take the right. Charge straight through!" After exchanging a brief word, the two immediately charged side by side toward the target ballista tower. They had to guard against the heavy arrows constantly raining down while also clearing away the soldiers carrying heavy shields. Their advance was simply too slow, but fortunately, the ballista tower was not far from the city wall.
In truth, the two of them understood perfectly well that even if they went all out, they could destroy at most one or two ballista towers before their externalized Qi was severely depleted. But they couldn't possibly return empty-handed!
"Damn it!"
After Zhang Xiu and Zhang Ren reached the base of the ballista tower, the two senior and junior brothers couldn't help cursing aloud. They circled the tower once, yet unexpectedly found no door at