North of Red Mountain City, it would not take long to fly beyond the borders of the Nine Heavens Grand Domain and enter the boundless void.
The flying boat's speed was only a little over a thousand kilometers per hour. A little over six hours had passed since the incident at Ying Family Fort last night, which meant that the flying boat could only have traveled close to eight thousand kilometers.
If that flying boat had kept flying north without changing direction, he could definitely still catch up to it.
With that thought, Zhang Tie wasted no more time. He activated the Invisibility Mirage Pearl again, soared from the treetop, and shot after the flying boat in the direction the owl had seen it leave, swift as lightning.
As Zhang Tie departed, he glanced back. A flying boat bearing the Martial Emperor Temple's emblem had only just arrived five hundred kilometers outside Red Mountain City. It would likely reach the city shortly. It seemed the experts dispatched by the Martial Emperor Temple had finally arrived...
Zhang Tie raced north through the air like wind and lightning. At the same time, he slowly and carefully recalled the appearance of the flying boat the owl had seen, enlarging the image in his mind and examining it closely. At this moment, that flying boat was his only clue.
The flying boat that had taken away the Yin-Yang Sect members was the most common kind of small flying boat in the Sky-Piercing Realm. Just over a hundred meters long, it was the Sky-Piercing Realm's most classic Featherflight-class flying boat. Both the design and performance of Featherflight-class flying boats had stood the test of time in the Sky-Piercing Realm. Their blueprints were completely public, and they could be manufactured in many places. Though the interiors