Several hours later, the white flying boat streaked across the sky like a ray of light, carrying Liu Changxu and Bai Xuefeng safely to the vicinity of Northern Nether Immortal Island.
Standing on the flying boat's deck, Liu Changxu looked up. The entire island was enveloped in a thick white formation halo, within which unfathomable auras of the Great Dao circulated. Though seemingly calm and still, it exuded a pressure that made his heart tremble.
This was Northern Nether Immortal Island's Island-Guarding Grand Formation, the Northern Nether Ice-Soul Grand Formation. Personally established by the Northern Nether Quasi-Emperor, it was a quasi-emperor-level formation harboring terrifying murderous power capable of destroying heaven and earth. Ordinary cultivators lacked even the courage to approach it.
By now, countless sea monsters had surrounded the Island-Guarding Grand Formation so tightly that not a drop of water could pass through. Their sizes varied wildly, from a dozen feet long to as enormous as mountains. Some were covered in sturdy scales, while others sported immense fins. Their forms were bizarre and countless, and the formidable auras they radiated made the void itself tremble.
Most of the sea monsters, however, merely prowled and roared outside the grand formation. Only a handful who knew neither heaven's height nor earth's depth brazenly charged at the Island-Guarding Grand Formation.
Before they could draw near, the white formation halo abruptly shot out streaks of icy light, instantly freezing those at the forefront into lifelike ice sculptures. Even their struggling postures were preserved. They then plummeted from the sky and shattered into countless ice crystals against the ice below, their lives utterly extinguished.
The terrifying sight sent a chill through every sea monster. Aside from a scattered few whose ferocity had overwhelmed their reason, the vast majority dared only launch futile attacks from afar.