Book from the Earth: the Supreme Immortal Path

The story tells the story of a young man who died suddenly and traveled to the world of immortality and was buried alive by a mine collapse. He discovered that a stone book he bought in the ghost market had followed him. The stone book can synthesize low-level ores into high-level ores, thus achieving an increase in value. From then on, the protagonist uses the earthly book to embark on the process of becoming the supreme immortal. This book is a low-key development and slow-burning article, and gold fingers are not perverted!