"Not good!"
Yun Yuan and the others' faces changed at once.
The Nine-Bend Underworld River Array was an exceedingly powerful and profound formation. Not only did it use the power of the formation to construct tangible matter, but every part of it was connected by the formation's power to a different space. It was as though passages through countless spaces had been kneaded together, forming this unique, boundless Underworld River.
Apart from the route known to the "ferryman," which was absolutely safe, most other places within the Nine-Bend Underworld River led to unknown spaces. Most of them might even connect to turbulent spatial currents or meteor-filled realms beyond the heavens. It was precisely because the sky above the river, its surface, and its depths were all formed from these kneaded-together spatial passages that almost no one within the Nine-Bend Underworld River Array dared use Daoist Arts to fly or flee. A single careless deviation from the safe route could sweep one into some inexplicably perilous space.
Though Zhu Zongzong did not dare violently disrupt the entire formation, the spatial passages within it had clearly become even more chaotic and unpredictable after his interference. Countless raging waves now crashed toward them; once they were knocked off their established route, they would be in extreme danger!
Just as Yun Yuan and the others, caught unprepared, were nearly thrown off their feet by the violent impact, several more towering waves smashed fiercely against the vessel. Their bodies shuddered violently as the bowl-shaped boat rocked wildly and was hurled high into the air, as if giant hands were tossing it up and battering it down.
"Do not leave the boat!"
At that moment, the ghostlike Blind Ferryman suddenly let out a thunderous shout. The black pole in his hand repeatedly tapped the water's surface.