Very soon.
Ling Pengyun and the others arrived in the depths of the secret realm.
Afterward, using several earth-escape techniques, they descended several thousand zhang underground before finally reaching the earth core.
The earth core, like those of the White Shadow Secret Realm and the Profound Pearl Secret Realm, contained incomparably high temperatures and hung suspended in the air.
With a sweep of their divine senses, Ling Pengyun and the others detected traces of First Sun Power within it. Evidently, the Nascent Soul realm Moon Shadow Wolf King had absorbed it through some special method in recent days.
They did not stand on ceremony, directly sweeping away the Moonlight Power within the earth core and dividing it among themselves.
Afterward, Heavenly Star Old True Lord sent his divine sense into the earth core and slowly refined it through the Fate-Seeking Immortal-Finding Array that had opened this secret realm.
Ling Pengyun and the others stood guard here, lest the Moon Shadow Wolf King stir up any trouble.
Fortunately, the Moon Shadow Wolf King behaved itself.
Moreover, it did not make the earth core resist. Thus, Heavenly Star Old True Lord refined the earth core in just a few months.
From then on, as long as he set up coordinates in the outside world, he could use the earth core to establish entrances and exits at will.
Naturally, Ling Pengyun would not simply watch as Heavenly Star Old True Lord gained sole control over this secret realm.
He spoke up as well.
"Senior Heavenly Star, have your grand formation refrain from resisting. I need to place a technique upon the earth core. Otherwise, if this junior cannot control the earth core, I truly cannot rest easy."
The Crimson Flame Fire Phoenix of the Maple Leaf Li Family beside him also echoed him.