chapter 813 Produced by Lewis Lu, it must be a high-quality product

In the next two days, Lewis Lu locked his bedroom door and tirelessly studied the "Basic Alchemy Technique Book Version One to Three."
He even skipped meals, reaching the point of complete dedication.
What did Lewis Lu have?
The alchemist's basic manual, the Heavenly Tungku, the Spirit Fire, and the formula for the Elixir of Youth Pill.
Moreover, the materials for the low-grade Elixir of Youth Pill were not particularly rare, and he had already purchased a large...