A rumble came from inside the office as a sharp hand axe slashed over Su Xiao's head, cutting off several strands of black hair.
As Su Xiao ducked, he kicked Buck in the lower abdomen. Just as Buck retreated, a Blade Glow flew straight at him.
Clang!
The Blade Glow was shattered by the axe's edge and dispersed into the air.
"Whew~"
Su Xiao let out a long breath, his breathing slightly labored. Fighting an enemy like Buck consumed a great deal of stamina. Every time he blocked those two hand axes, he was forced back several steps. After repeated exchanges, the organs in his chest began to ache faintly.
Buck was having a hard time as well. His body was covered in bloody marks. Dragon Slayer Flash was far too sharp—a light slash left a wound deep enough to reach the bone, while a strike delivered with normal force would sever whatever it hit.
Su Xiao and Buck locked eyes. Just as they were about to clash again, the ground beneath them suddenly shook. This was no longer the first time.
With a thunderous crash, large sections of the concrete floor broke apart and fell downward.
At that moment, from the second underground level to the fourth floor of the Saint Limen Fortress, only empty shells remained. The fifth floor had been lowered by at least three meters, which was devastating for the structure.
The concrete beneath Su Xiao's feet cracked extensively. He leaped toward a relatively intact foothold, and in an instant, most of the surrounding floor slabs collapsed.
When the shaking stopped, the only foothold left in the office was a strip barely two meters wide. Su Xiao and Buck were both standing on it, with no room to turn around.
Orange-red light shone up from below.