Guixu's Ruin Heart lay in the deepest reaches of this enormous pit on the seabed.
The closer Chu Xisheng drew, the more he felt the pressure around him increase.
This was where the pressure was greatest on the entire seabed, and the water here was unusual too: it was all seven-origin heavy water.
This water was also an important material for refining the Heavenly Gang Talisman "Heavenly Explosive Core Yang" and its associated rune arrays.
However, seven-origin heavy water could also be found elsewhere, where gathering it was far easier than here in Guixu.
When Chu Xisheng ventured a thousand li into the Ruin Heart, the First-Rank Corpse Kings guiding them stopped.
The seven-origin heavy water here had already turned into eight-origin heavy water. Besides the increasingly powerful pressure, a mighty magnetic force gripped their bodies fast, while endless scorching, incandescent rays and flames, along with incomparably violent particle dust, streamed out from within.
Even these mighty First-Rank Corpse Kings, whose strength placed them at the lower end of the Heavenly Ranking, burst into flames all over.
Beneath this deep sea, their entire bodies had all but become torches.
The one leading them said apologetically, "Our apologies, you two. Our masters are waiting in the deepest layer of the Ruin Heart. Once you draw close, you will be able to communicate with them."
Then, not daring to linger even a moment longer, they all departed using Water Escape.
And it was not just these four Corpse Kings. Little Flathead had already returned straight into Chu Xisheng's body, while Bai Xiao Zhao had hidden inside his inner armor.
She could actually shrink her body to the size of a fist. The pair of winglike bone horns on her back transformed into thunder and raging winds that circled her, without affecting her