62 Chapter 62 Two Formulas_1

Upon reaching the upper floor, Luo Jingrui got straight to the point, "Ninth Sister, the significance of movable-type printing is tremendous. I had written a secret letter and sent a trusted aide to deliver it to the frontier for Xuan Mo, but I didn't expect Ziyu's incident to bring Xuan Mo rushing back. I presume he hasn't seen the secret letter, so it's just as well that you speak directly with him about it."

Long Xuanmo nodded, indicating that he indeed hadn't received the secret letter.

"What is this movable-type printing?" Nangong Lingfei asked with a face full of curiosity, while Long Xuanmo and the others looked at Yang Mengchen.

Yang Mengchen naturally knew the importance of the matter, but she hadn't expected that Big Brother Luo had all along been waiting for news from Long Xuanmo and hadn't replied to her.