Poison Continent, Great Poison Technique Advances

Lin Changqing recalled that when he had first gone to the Primordial Spirit World, that world's spacetime had been sealed off. Even if one's speed surpassed the speed of sound, it would have been impossible to break through the barrier and enter the Dark Universe.

How similar it was to the Xuan You Grotto-Heaven before them. Of course, there were still major differences between the Xuan You Grotto-Heaven and the Primordial Spirit World. The first was that the Xuan You Grotto-Heaven's barrier was far more powerful than that of the Primordial Spirit World.

At the same time, a powerful suppressive force filled heaven and earth. Experts above the Great Sage realm simply could not enter. If they dared force their way in, they would likely be directly blasted to death by the rules of the Xuan You Grotto-Heaven.

Ordinarily, no matter how powerful the rules of a mere Grotto-Heaven World were, they could not possibly kill a Great Sage.

But the Xuan You World had been derived from the origin of the Xuan You Star Domain, making it anything but ordinary. In essence, it stood on equal footing with the entire Xuan You Star Domain.

Precisely because of this, the Xuan You Grotto-Heaven was immensely vast. Its territory far surpassed that of the Primordial Spirit World and was not even inferior to the Xuan You Great World.

The combined influence of all these factors had made the Xuan You Grotto-Heaven exceptionally unique.

Many thoughts flashed through Lin Changqing's mind. At that moment, Chen Yufei's Golden Light Cave Treasure Ship had already accelerated to five hundred times the speed of light. In an instant, it crossed an unknown number of tens of thousands of miles, trailing a terrifying sonic boom and even bursts of light as it shot toward the depths