Several days later.
On the Desolate Island, a surge of demonic qi shot into the sky, radiating the terrifying fluctuations of a Third-Order Demon King.
The low-tier demonic beasts prowling nearby seemed to be instantly startled and fled toward the outer reaches.
Above, clouds appeared across the heavens, forming fish-scale patterns, with countless lightning serpents twisting within them.
"Mm... The Longevity Tortoise's condensation of its Demon Pill went very smoothly. Now we'll see whether it can survive the lightning tribulation."
Not far away, Fang Qing stood in the air, watching the scene. "Of course... It will certainly survive."
This Longevity Tortoise had originally been somewhat lacking in innate endowment. Later, Zhan Hongxiu had also damaged its origin by using a Lifespan-Burning Pill.
Originally, it should have had little hope of advancing.
But Zhan Hongxiu truly was a daughter of fortune. Turtle Elder had used various secret arts to replenish the Longevity Tortoise's origin.
On top of that, when Zhan Hongxiu herself formed her Core, she had spared no cost to nourish her bonded spirit beast with the origin of her own True Core.
With the method of joint cultivation in the Tortoise-Crane Longevity Formula, that was enough to break through the bottleneck of Core Formation!
As for the Heavenly Tribulation?
Before Fang Qing's eyes, a Third-Order Longevity Tortoise as large as a mountain appeared. Its head somewhat resembled that of a Flood Dragon, with two bulges sprouting from it, and its aura was cold and imposing. Rumble!
It was as if heaven and earth had been enraged. A bolt of azure lightning descended.
The Longevity Tortoise showed no fear. It spat out a huge, pitch-black tortoiseshell, its surface covered in countless intricate, ancient patterns, and took the heavenly thunder head-on! Bolt after bolt struck the shell, only to be completely