Thus, the Pill Is Complete!

Beneath the Starfall Secret-Gold Cauldron, orange Mortal Fire blazed fiercely.

As the temperature inside the cauldron gradually rose, changes appeared on its surface.

Among the Twenty-Eight Mansions, Tail Fire Tiger, Room Fire Pig, Beak Fire Monkey, and Wing Fire Snake lit up one after another, echoing one another from the four sides of the golden cauldron.

Each fire-aligned mansion that lit up signified that the temperature had risen by another tier.

When all four were lit, it meant he could begin refining pills.

Seizing the right moment, Xu Changqing tossed the high-quality grade iron sand he had bought into it. A series of sizzling sounds immediately rang out from within.

The iron sand bounced back and forth inside, like ants struggling on a hot pan.

Yet under the scorching heat, its vitality began to fade. It then gradually decomposed, leaving behind the pure portions while the impurities oxidized away.

Before long, it changed from silvery gray to reddish brown.

This step was called "Fire Suppression."

It was specifically used to temper metal, strip away impurities, and remove toxicity.

After some more time passed, Xu Changqing saw that it was about right. He scooped into the cauldron with a wooden ladle as long as his arm, removed the reddish-brown iron sand that had shrunk by half, and placed it into the prepared mortar beside him.

Before the temperature could drop, he threw several stalks of Scarlet-Flame Grass into the cauldron.

Sizzle, sizzle, sizzle—sounds rang out in quick succession.

A wisp of crimson flame even rose up.

Seeing this, Xu Changqing remained calm, without the slightest reaction.

For now, every change was normal. Nothing unexpected had happened.

He watched as the Scarlet-Flame Grass slowly burned into ashes. Then he picked up the Greenwood Vine beside him, which had already been washed clean