"It was the World-Ending Array. No wonder..."
An Jing looked enlightened. The words he hadn't spoken were, No wonder the Tianxuan True Talisman came to me, a Seven Killings Tribulation.
The destruction of heaven and earth and the return of the ten directions to ruin were, in essence, an apocalypse. Though their purposes and powers differed, they naturally shared an affinity at their origin with the Seven Killings Tribulation.
And An Jing was very interested in what Yin Yuelan had called the "Heavenly Profound Ultimate One True Spirit Core."
Chenyinzi and Heavenly Monarch Chengguang were indeed in poor condition. Unless necessary, they would remain asleep. Just as before, aside from intimidating Yin Yuelan, the two Old Ancestors hadn't wanted to say a word; they'd gone right back to pretending to sleep and resting.
So An Jing asked, "Heavenly Profound Ultimate One True Spirit Core. The name suggests it's a core that houses a Divine Soul, but what exactly is it?"
"Actually, it's also a little scheme of ours."
Yin Yuelan spoke very frankly, which was a virtue. He even explained the details of his little scheme to An Jing directly. "The True Spirit Core's full name is actually the 'Grotto-Heaven True Spirit Core'... I imagine Sect Master An knows what that means."
An Jing immediately understood. "It seems you want to cooperate with us on the deepest level."
A Grotto-Heaven True Spirit was essentially the little Heavenly Dao of a Grotto-Heaven world. From Hanyue Heavenly Venerable's inheritance in formations, An Jing knew that the Heavenly Dao of the Dao Court world was very likely the spirit of a great formation of heaven and earth, constructed by beings at the Immortal Venerable or Dao Lord level.
A Grotto-Heaven was naturally a level or more below a great world. Grotto-Heaven True Spirits