Were the various spells written in Lu Ban's Encyclopedia real? The answer was no. Although there were many descriptions of spells in the Lu Ban Encyclopedia, the spells in it were all fictional without real scientific basis. These spells could be mythical abilities imagined by the author, or they could be fictional elements added by the author to increase the interest of the novel. Is it true that learning that book will result in no descendants? This was also impossible. Although there were many descriptions of spells in the Lu Ban Encyclopedia, the spells in it were all fictional and had no real scientific basis. Even if a person learned that book, it was impossible to make their descendants extinct by learning that book. Has anyone practiced that book? Although the various spells written in the book were fictional, some people might practice the spells in the book out of curiosity or entertainment. But even if a person practiced the spells in that book, there was no guarantee that he would die without descendants. Because spells were fictional and had no real scientific basis, a person practicing the spells in that book would not have any impact on the real world.