When Zhang Ruochen dragged the body of the Supreme Saint out, he discovered that there was still a trace amount of divine power emanating from the body, especially the rotten parts.
That made him think. That demigod beast must have swallowed this Supreme Saint alive. His body wasn't decaying naturally but broken down by the demigod beast's power in the stomach.
He took the saber from the dead Supreme Saint's hand and summoned flames out of his palm to purify it.
Rust disappeared from the saber; it was now shiny with a cold glancing light.
This saber was a true Supreme Saint's weapon, which possessed a rich amount of Supreme-Saint power.
Zhang Ruochen released his spiritual power to examine the number and grade of the inscriptions on the saber. A high-pitch, harsh sound suddenly came from the saber just as he injected his spiritual power into the weapon.