About an incense stick later, Jiang Ping'an finished his probing and withdrew his Spiritual Sense.
After a brief moment of thought, he had a refinement plan.
With his current attainments in artifact refinement, this Primordial Profound Turtle shell could be refined into a Dao Artifact, but the expenditure of immortal power and Heart Force would be enormous, and it was not especially worthwhile.
He only wanted to refine it "simply," expend less immortal power, and turn the Primordial Profound Turtle shell into a top-grade Celestial Artifact to sell for Source Crystals.
The next moment, Jiang Ping'an restored his Ten Thousand Feet Ancient Barrens Dao Body and flew into midair. He raised his right hand, immortal power surging, and the mountain-sized Primordial Profound Turtle shell rose in response, slowly ascending before him and hovering in midair.
Immediately afterward, Jiang Ping'an began forming immortal seals with both hands, driving restriction after restriction into the Primordial Profound Turtle shell.
He chose a relatively intricate refinement method that consumed the least immortal power, because with the Creation God Wheel accelerating the flow of time, he did not lack time.
Every restriction contained the true meaning of artifact refinement from Her Ladyship's Record of Artifacts; some coiled like wandering dragons, some spread their wings like phoenixes, some suppressed like mountains, and some surged like rivers.
When the restrictions landed on the turtle shell, they transformed into strands of golden markings, intertwining with the shell's original natural Dao Patterns, merging with one another and strengthening each other.
As he drove in three thousand restrictions, the black color on the turtle shell began to fade, and faint golden light seeped through.
After he drove in twenty thousand restrictions, the natural markings on the surface of the turtle shell had already been completely covered by golden Dao Patterns.