Due to the Illusion Giant's uniqueness, Du You had no idea where the opponent was. Even after the opponent attacked, Du You still didn't know the exact position of the attack, as if it appeared out of nowhere.
Moreover, Du You strongly suspected that even if he found the direction of the attack, it might not necessarily be in a straight line.
This Illusion Giant was the most dangerous and tricky Heavenly Disaster Giant he had encountered in such a long time. It's quite surprising that it didn't massively affect the surrounding environment.
Looking at the living conditions of the people nearby, there seems to be no impact at all.
Du You could only rely on attacking randomly to locate the opponent. Especially his own Dark Vine Demon Emperor, which fully extended its vines, spreading dozens of miles around, rooting underground to pinpoint the opponent's position.