It happened that about one month after Lu Yao left Xijing University, Han Dong and Lan Feiyan went to the antique street together on a cool autumn morning. Suddenly, Han Dong saw a beautiful stone in an antique shop's show window, and he wanted to buy it. Han Dong's parents had been in the jewelry business, and Han Dong had more or less learned something from their experience. At first glance of the stone, Han Dong felt that it was unusual. Although it was just his intuition, he still ...