"Yes." Raymond nodded. "The unofficial history I read recorded that when Huang Chao started the rebellion, he was lucky enough to be assisted by a master who located and obtained the Four-Sided Treasure Tower. Huang Chao failed to succeed as an emperor despite the help of the treasure tower. As a result, the tower fell into the hands of Zhu Wen.
“However, the tower couldn't play its true role as Zhu Wen didn't have talented people who studied the Book of Changes. Since then, the whereabouts of