Chapter 644: Fierce Sun Grass

Ling Zhenfei wasn't afraid of anything. He channeled the Northern Spiritual Energy into the Silver Needle, allowing the energy to interconnect and repair the necrotic meridians.

However, this method of permeating with Northern Spiritual Energy seemed somewhat awry; it would take a very long time to use, and Ling Zhenfei couldn't afford to deplete so much Northern Spiritual Energy.

Ling Zhenfei thought of the Fierce Sun Grass still inside his Heaven-Dropping Essence Marrow that might help.

With this thought, Ling Zhenfei took out the Fierce Sun Grass from his Heaven-Dropping Essence Marrow, gently placing it in his hand. The herb exuded a mild sensation, quite unremarkable to look at, but Ling Zhenfei knew it was extremely rich in Northern Spiritual Energy.

Ling Zhenfei handed the herb over to Hua Long and instructed him to grind the Fierce Sun Grass into powder.