The next morning, the gang finds a wooden case with a secret message written in it by a man named Gan Wu to a woman named Li. The letter says that Gan Wu wants to stay with her, but that he can't open the case because it's sealed with a special lineage. He also tells the gang that the letter contains three pure magic crystals, which is a gift from Gan Wu. The gang is confused by the tiny size of the crystal fragments, and they wonder if Gan Wu gave them as a gift, or if they're too small to be of any use to him. They're also confused that someone is following them.