Half Sky Sea lay at the border between the North Water Divine Palace and the Taiyi Thunder Prefecture.
Normally, almost no one came to this region. The North Water Divine Palace and the Taiyi Thunder Prefecture had long regarded it as a buffer zone between their respective powers. If disciples of either side crossed the border at will, it would be tantamount to provoking a war. That was why Half Sky Sea had been designated as a borderland.
The North Water Divine Palace and the Taiyi Thunder Prefecture truly needed a buffer region to keep their conflicts from escalating to the point where both sides would have to mobilize for war.
Yet on this day, deep within the waters of Half Sky Sea, a pitch-black storm cloud spread outward. Faintly visible within it were eight gates, which, together with the murky black clouds, formed a Heaven-and-Earth Supreme Thunder Infernal Prison Array.
Rumble—!
Above the vast ocean, dark clouds hung heavy. Heavenly winds howled and sea waves surged; the boundless world was bleak and gray, while thunder rolled like the awe-inspiring wrath of Heaven.
This formation was exceedingly terrifying. It contained thirty-six forms of Supreme Thunder arts, especially with the Two Principles Divine Thunder and the Primordial Magnetic Divine Thunder combined in pairs, producing immense might. It also concealed its own heaven and earth, with eight groups of banner gates in total.
Every banner gate contained another space within it, along with the eight transformations of Stillness, Guarding, Illumination, Motion, Shock, Injury, Break, and Extinction. These could generate numerous minor thousand worlds.
At this very moment, the ancient Realm-Sealing Gate was trapped within the formation. The master and disciple pair, Jiumoluoye and Ajabao, were driving the ancient Realm-Sealing Gate as they wandered through this Heaven-and-Earth Supreme Thunder Infernal Prison Array.
This