If Zhang Bin continues refining his body at this speed, it would take tens of thousands of years just to cultivate his bones to the level close to dragon bones. Only then could he transplant the Dragon Vein Elder's marrow to further nourish his bones and body, truly cultivating dragon bones. After that, he could cultivate within dragon blood.
However, if he obtains this Dragon Marrow Grass and refines it into the Strong Marrow Elixir, the time required could be greatly shortened.
"Heavens, one millimeter in ten thousand years, but the Dragon Marrow Grass here is nearly 20 meters long."
"Master, I feel these Dragon Marrow Grass have a lifespan close to two hundred million years."
Xiao Qing excitedly said in Zhang Bin's Dantian.
