Upon witnessing the bizarre scene, even the sword cultivator, who always prided himself on his strong will, turned pale.

What appeared to be a shadow was actually countless rotting corpses gathering and 'sliding' from afar, surging like a river. Strangely, those corpses were still wriggling, like worms.

Even the massive demonic beast corpses were being pushed by this 'tide,' swiftly moving towards Immortal City.

A huge wave of deathly aura surged into the sky, turning it a murky yellow. All the cultivators felt an indescribable oppression, with some even exuding black energy, as if about to succumb to inner demons.