Kapitel 86: Dao-Grade Foundation Establishment Pill, Thunder Tribulation Descending

The faint purple light of the Thunder Bamboo lingered in his hand, and the tiny purple electric arcs seemed to be still moving around his body.

Su Yi did not hesitate too much, and he gently put it into the pill furnace. Then, he casually threw in the other medicinal materials.

When it came to the demon king's demon core that was different from the others, he paused for a moment. The demon king demon core in his hand did not belong to just any demon king. It was the monster core of the Purple Lightning Dragon Armored-lizard that he had killed at the bottom of the valley.

The surface of the demon core was extremely red. Occasionally, there would be a burning sensation on the surface of the demon core. Seeing this, Su Yi smiled faintly and threw it into the pill refining furnace.

His true essence activated the earth fire, and the temperature in the pill refining room instantly rose.