The Heaven Frigid City was quiet as Du Heng had been in closed-door cultivation. After he came back from the Heaven Prison City, he went directly into cultivation to prepare to reach the Human Sovereign Realm.
He had almost all the Mystic Materials ready. He didn't do it before because he felt uncertain. The Mystical Materials cost the Du Family quite a fortune. If he failed, he would have wasted the wealth the family accumulated over the years.
At the Heaven Prison City, Du Zheng turned back on him and took Lu Li's side. Du Heng had a sense of urgency.
He didn't know that Lu Li had left the Northern Desert. Du Zheng was convinced that sooner or later, Lu Li was going to unify the Northern Desert so he was ready to have a desperate try. If he could reach the Human Sovereign Realm, he could be the one that would unify the Northern Desert to make his own empire.