The vast Greater Khingan Mountains are filled with forests of larch, birch, aspen and other trees. This has been the case for thousands of years. Although the trees were cut down in the 1970s, 1980s and 1990s, and a lot of efforts were made for national construction, the natural environment here has not been damaged. Within a few years of the mountain closure, the forests were deep and dense.
Zhang Yaosheng has loved reading his grandfather's medicine books since he was a child. Even though he didn't know how to read, his grandfather would hold him in his arms every time he came back from digging medicine in the mountains to read the medicine. When he became sensible, he could read and learn a lot.
Grandpa knew how to see a doctor, especially external medicine. Although in the early days of the Cultural Revolution, his grandfather was very busy helping others see external medicine. Later, the Red Guards found out about it and took his grandfather's medicine book to read Qi Men Dun Jia Shu, a mahogany copper coin sword, and a compass. Zhang Yaosheng's grandfather died of illness even before he died. They told Zhang Yaosheng's parents: "It is a fate that Yao will be able to take over my class after giving birth to a child. And don't be sad when I leave, the devil can't catch me." When Zhang Yaosheng's grandfather left, a big whirlwind came out of nowhere and circled the house three times**, and he also stopped breathing.
This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.