As a matter of fact, right after Zhou Tian threw those Crystal Bombs, his actions immediately took effect. Almost the instant Zhou Tian detonated the Crystal Bombs, several Ancient Powerful Beings were blasted away.
Unfortunately, there were always a few Ancient Powerful Beings blocking his path, and at the same time, it was extremely difficult for the explosion of the Crystal Bombs to kill an Ancient Powerful Being. Under those circumstances, Zhou Tian's actions, although troublesome for those beings, made it nearly impossible to kill them directly.
On the contrary, when Zhou Tian's actions ceased to pose a lethal threat to the Ancient Powerful Beings, they did not relax their own attacks against him in return.
