Zhangdu Forest, true to its name, is a damp place even in the dead of winter, with its venomous snakes and insects showing no signs of hibernation and crawling everywhere.
Veiled in fog throughout the year, it's impossible to see the path clearly. People need to carry torches and pay careful attention to where they step.
The guards shielded the Nanchu King and the others, driving off venomous snakes and insects without killing them. Zhou Gu had learned to identify many valuable medicinal plants while assisting Su Rong in preparing medicine. Coupled with the book of ancient recipes that Su Rong had handwritten for him, which he often studied, and a book of medicinal plant illustrations he had made in his spare time, he was well versed in recognizing and studying medicinal herbs. Now that they were in Zhangdu Forest, he discovered several valuable medicinal herbs that were hard to find in the ancient recipes. How could he pass up this opportunity?