The Nine Heavens Grand Domain lay in the central region of the Sky-Piercing Realm. Throughout the Nine Heavens Grand Domain, humans and demons were intermingled in conflict. The Dragon Emperor Domain lay to its southeast, more than 360,000 kilometers away. Even by airboat, the journey would take nearly twenty days—almost three weeks.
There were seventy-four airboats departing Heavenly Square City for the Dragon Emperor Temple. More than thirty thousand people were aboard them. That was indeed not many people for so many airboats, because supplies and consumption during the journey had to be considered. Following Hall Master Huang's orders, every airboat had been loaded with water, food, and other supplies before leaving Heavenly Square City. Several airboats carried no passengers at all, but were filled entirely with various materials. Those were dedicated supply airboats, allowing the fleet to fly directly to the Dragon Emperor Domain without stopping along the way.
From the moment the Dragon Emperor Temple's airboats departed Heavenly Square City, Zhang Tie spent virtually all his time aboard in his cabin, cultivating quietly without even stepping outside, paying no heed whatsoever to what went on beyond his door.
The cabins aboard the airboats were not particularly large, but every divine general had a private cabin—a most preferential arrangement. At a little over thirty square meters, it was like a small apartment. Each divine general was also allotted nearly sixty liters of water per day, enough even for bathing. After carrying a box of dry rations into his room, Zhang Tie never went out again, devoting himself wholeheartedly to cultivation.
Through this cultivation, Zhang Tie's control over those two streams of energy continued to improve. The most direct sign of this was that his efficiency in condensing those two streams of energy was visibly accelerating.
Mental strength was like