After dodging Zi Shang's attack and exiting the high platform, Duan Ling Tian originally wanted to use all his might to cast an attack in the air and rely on the air resistance to generate recoil so he could push his body back on the high platform. After all, there was a Flight Prohibiting Formation here that prevented him from flying.
However, he discovered after several tries that the air in the surroundings did not produce even the slightest bit of resistance. His energy swept out and vanished without a trace. It was as if it was buried in a bale of cotton as though it was never cast in the first place. Let alone explosions, not even the sound of wind whistling could be heard at all.
"What's happening?!" Deeply in shock, Duan Ling Tian ransacked the memories of the Martial Emperor's secret treasure in his mind.
Finally, he managed to figure out the answer.
