Castle of Black Iron

"Centralpolar Mountain is 600 miles ahead..." Bai Suxian said as she and Zhang Tie were watching the lush and lofty mountains below from the command module of the airboat.

Although the dense, undulated ranges looked normal, they contained great dangers.

The territory 600,000 square miles away from Centralpolar Mountain was one of the top ten dangerous places in South Border.

Closely after Bai Suxian's words, the crew in the command module started to report one after another.

"Sir, the air floating dynamic system is facing a sharp decrease in its efficacy..."

"We've detected a super strong gravity from the ground, which slows down the marching speed by 10%..."

"Something is wrong with the horizontal gyro!"

"The rune navigation wheel is ineffective..."

After hearing these reports, Zhang Tie instantly made a decision, "Suspend it, move backward out of the perilous region..."

Zhang Tie could drive airship; he even guided the battle formation of airships in Selnes Theater of Operations. The operation of airboat was similar to that of the airship; therefore, Zhang Tie issued the order. After moving backward for 20 miles, the airboat recovered to normal.

Shaking his head, Zhang Tie sighed with feeling, "Centralpolar Mountain is really something!"

"Of course, it's one of the top ten perilous places in South Border. Every metal object would be affected within the territory of Centralpolar Mountain. The closer it was to the Centralpolar Mountain, the greater the influence would be. Even knights couldn't enter Centralpolar Mountain with metal objects..." Bai Suxian said with a solemn look as she watched the mountain below.

"I've not imagined that someone could discover a tower of time of the Great Wilderness Sect here." Zhang Tie said, shaking his head.

Three days ago, on the second day since Zhang Tie came to Lord Guangnan's Mansion, soon after Zhang Tie finished his breakfast and was talking with Lord Guangnan in the study of the latter, they had received an astonishing piece of news——someone had already discovered Dongtian and a tower of time of Great Wilderness Sect in Centralpolar Mountain of South Border. A knight had already accessed to the tower of time.

Zhang Tie could still remember the facial expression of Lord Guangnan when he heard this news; it was simply like stepping onto sh*t in a pair of new, dear shoes.

Lord Guangnan's Mansion had been tortured over 10 years by the news concerning treasures and Dongtian of Great Wilderness Sect at a great cost of manpower, wealth and rations in vain, with the result that Lord Guangnan's Mansion was already numb about that. In the following decades, although news about treasures and Dongtian arose every year, Lord Guangnan's Mansion didn't dispatch any knight to join similar actions anymore.

The news concerning the discovery of trace of Dongtian of Great Wilderness Sect near Centralpolar Mountain also spread over South Border a few days ago; however, Lord Guangnan's Mansion disregarded it; because Barbarians Mountain and Endlove Sea were also purported to have Dongtian of Great Wilderness Sect. Similar news could be heard across the South Border.

Nobody could imagine that it was real in Centralpolar Mountain.

As the top power of South Border, Lord Guangnan's Mansion must feel extremely disappointed missing such a rare opportunity.

On the day they received the news, Bai Suxian's third uncle Bai Runshan had already taken a group of knights to Centralpolar Mountain at the fastest speed. Zhang Tie didn't leave for there with Bai Suxian until two days later.

Honestly, Zhang Tie's heart also pounded when he heard that Dongtian and a tower of time were discovered in Centralpolar Mountain of South Border. As a knight and the head of a sect, Zhang Tie was also attracted by the treasures and Dongtian left by Great Wilderness Sect; especially the tower of time, which Zhang Tie felt lacking the most now. If he could have a few more towers of time available and enable his elder brother and subordinates promote to knights in a short period, it would be of unusual significance for both Jinwu Palace and Iron-Dragon Sect.

If not for proposing marriage here, Zhang Tie might have left for Centralpolar Mountain on the same day when he heard the news.

However, as the son-in-law of Lord Guangnan's Mansion, Zhang Tie couldn't drop everything else and leave for treasures which otherwise would be rude. Given Zhang Tie's social status, he could really not do it.

Even an ordinary son-in-law couldn't run away for money when he heard a nouveau riche was scattering money on the roof of a building a few blocks away from his father-in-law's house, not to mention Zhang Tie.

Therefore, after hearing the news, Zhang Tie stayed two more days in Immortalwood Plains calmly, during which period, he enjoyed the special treatment of Lord Guangnan's Mansion with Bai Suxian. After traveling around some cities in Immortalwood Plains, Zhang Tie gave some suggestions to the training of the air cavalries corps of Lord Guangnan's Mansion, and discussed the future of rune instrument artisans with his second uncle-in-law Bai Zhengxi. After fixing the marriage between him and Bai Suxian, they headed for Immortalwood Plains out of curiosity.

Thankfully, although Zhang Tie didn't go to Centralpolar Mountain these two days, he realized that he still had a chance when he heard that the tower of time was discovered in the periphery of the Dongtian of Great Wilderness Sect while the internal region of Dongtian had not been explored yet.

The airboat suspended in the periphery of the influence of Centralpolar Mountain. After leaving some words to his crew, Zhang Tie then flew out of the airboat with Bai Suxian.

Before Bai Suxian left the airboat, she almost took off all of her metal jewelry. She only wore a hairpin made of bloodydragon wood.

Zhang Tie held Bai Suxian's hand while the latter injected a bit spiritual energy into Zhang Tie's body. Zhang Tie then manipulated the spiritual energy and flew towards Centralpolar Mountain at a speed three times greater than the speed of sound using his ability as a divine dominator.

Such a flight cost them minimal spiritual energy at such a high speed, which could be frankly accepted by Bai Suxian...