Castle of Black Iron

Dense runes spread over a 1 m-long mithril templet progressively in the pattern of the Fibonacci numerical array, carrying an exotic, aesthetic feeling. Zhang Tie was concentrating on his rune brush at his full spirit. He had been in a strange state, where Zhang Tie became runes while a mysterious strength resonated with the lines drawn by his rune brush.

When he finished his last stroke, all the 2584 runes had been in shape. In a split second, the entire mithril templet started to give out brilliant white light and heat up. When the templet was going to be liquefied, Zhang Tie pressed down a metal level on his side while two huge mechanical arms clipped two ends of a 20-m longer metal pipe and moved it here. As Zhang Tie pointed at there, the liquefied mithril templet immediately flew into the metal pipe, forming a film over the entire pipe both inside and outside. After a sudden flicker, the 2584 runes had become still over the inner wall of the pipe. As a result, the entire pipe became as brilliant as mithril as they started to heat up…

With Zhang Tie’s manipulation, the huge metal arm put that hot metal pipe into a cement gully and had it tightly joined with the pre-set interfaces inside the cement gully.

Zhang Tie ran away from the auxiliary operation desk and came to the valves of the pipe. After turning on the valves, cold water flushed into the pipe. Closely after that, Zhang Tie ran towards the bathing place. Only after a short while, hot vapor had been arising from the surface of the cold water of the pool as the water that was flowing into the pool started to heat up. Zhang Tie squatted down and touched water inside the pool as he surged out his tears at once.

“I’ve succeeded. This father has succeeded. This father has succeeded in the rune array. From today on, I’m finally an immortal craftsman…” Zhang Tie screamed and jumped up and down as if he had been driven mad.

After staying in the tower of time for almost 6 decades, Zhang Tie finally broke through the last bottleneck of rune instruments manufacturing master and reached the apex of the profession of rune instrument manufacturing master——immortal craftsman. He had been proficient in the application of rune array and been able to build a large-scale rune array templet which contained over 1,000 runes above 18 levels…

Immortal craftsman was really a national treasure even in Taixia Country.

The first thing that Zhang Tie did after promoting to an immortal craftsman was to make a self-heating water pipe using mithril instead of making any earth-shocking invention. With the help of this water pipe, the second heating boiler could finally be retired gloriously.

During the past 6 decades, the first heating boiler that Zhang Tie made had long been retired gloriously after 2 decades’ service. The second heating boiler that he made using better techniques and raw materials didn’t go off duty until today. From now on, the water that flew into the bathing place would be heated soon after passing by that mithril pipe instead of going through the boiler.

Although the self-heating pipe looked simple, its principle was similar to that of the core dynamic constituent in huge ships that weighed millions of tons. In the eyes of all the rune instrument manufacturing masters, that self-heating water pipe that Zhang Tie buried underground was an appalling treasure and the crown…

After streaming for quite a while alongside the pool, Zhang Tie had rushed out of the crystal Mongolian yurt towards the cultivation platform outside as fast as the wind.

After sensing Zhang Tie flying towards her, Yan Feiqing opened her eyes at once and ended her cultivation. Before she made any response, Zhang Tie had burst out into laughter as he hugged her and made circles on the cultivation platform. If Yan Feiqing was an ordinary female, she might have been dizzy by Zhang Tie’s series of deeds, “Haha, I’ve succeeded; I’ve made it! I’m already an immortal craftsman…”

Zhang Tie was extremely thrilled that he couldn’t help sharing this news with Yan Feiqing.

“Please put me down first…” Yan Feiqing was also affected by Zhang Tie’s excitement and pleasure.

“Ahh, fine, fine!” Zhang Tie put her down as he put his arm around her slim waist and repeated, “I’ve made it. I’ve already mastered the LV 18 rune array. Your husband has already been an immortal craftsman…”

Zhang Tie was even happier than how commoners felt when they hit the jackpot and won millions of RMB at this moment.

With a smile, Yan Feiqing watched Zhang Tie who was as jubilant as a kid. At the same time, she wiped off the fine sweat drops over his forehead as she said tenderly, “I knew that you will do it…”

Besides Zhang Tie, only Yan Feiqing knew how hard Zhang Tie had tried for this goal during the past 6 decades. Sometimes, Yan Feiqing even felt distressed about Zhang Tie’s arduous work.

Besides the special cultivation environment and Zhang Tie’s hard work over the past 6 decades, only Zhang Tie was clear that it was his great spiritual energy as a divine dominator which played a key role in helping him promote to an immortal craftsman.

“Thanks for accompanying me the past 6 decades. Without your assistance, I might have been driven mad…” Zhang Tie put Yan Feiqing in his arms as he whispered to her.

Yan Feiqing said nothing; instead, she just put her arms around Zhang Tie as she kissed Zhang Tie’s face. At the same time, she leaned against Zhang Tie’s shoulder and said, “6 decades flashed by. I cannot believe that you and I have stayed with each other for 6 decades…”

“When male and female coordinate with each other, they would not feel tired and lonely. I’m afraid that’s how this tower of time is designed for…” Zhang Tie replied with a smirk while Yan Feiqing nibbled Zhang Tie’s neck.

Over the past 6 decades, the two people respected and loved mutually. They had long been like a couple. Zhang Tie promoted to an immortal craftsman today. Yan Feiqing had long promoted to a heavenly knight 3 decades ago. Now, Yan Feiqing had consolidated her level as a heavenly knight and had already entered 2 change realm of a heavenly knight.

After the two people separated from each other, they smiled at each other. After that, they moved their eyes at that time ball at the same time.

According to the time display on the time table of the cultivation platform, there were only 53 days left in this tower of time before it recovered its silence once again.

Zhang Tie instantly picked her up and walked towards the entrance of the crystal Mongolian yurt…

“Ahh, what’re you doing?”

“Of course, we need to have a dream to celebrate…” Zhang Tie said confidently and sensibly…