The Record of the Peach Blossom Spring?
If I remember correctly, this seems to be an article written by the ancient literati Tao Yuanming, expressing the author's dissatisfaction with real life and pursuit of a dream-like vision. However, the entire text is only a little over three hundred words, insufficient to make a book.
Considering that it was the book Xiaoqiao saw in the horror story event, it's very likely just a guise using the name of The Record of the Peach Blossom Spring, with content vastly different. Besides, I think I'm not overthinking it. The four words "The Record of the Peach Blossom Spring" remind me of Taoyuan Village, one of Luo Mountain's three major woes.
Actually, the mysterious male's origin that I suspect is also Taoyuan Village.
