3 days later, in Castle of Black Iron …
A shadow was flying in the sky of Castle of Black Iron at a terrifying speed as fast as a lightning bolt. That shadow could barely be seen by naked eyes. Only in the distance could Zhang Tie see a looming grey fine line in the sky …
"Boom …" There seemed to be lightning streaking across the sky. Wherever the figure flew past, a bare stone hill more than 50 meters high was blasted apart by the lightning. Rubble shot out like arrows, spreading over a radius of a few miles. After the explosion, only a huge hole with a radius of more than 10 meters was left on the ground.
"Boom …", "Boom …", "Boom …"
Thunderous booms resounded continuously. Along with these loud noises, the high and low hills beneath the flying figure exploded one after another, leaving huge holes in the ground. The flying figure was like a supersonic bomber. Just by flying through the sky, he plowed a huge mark in the ground.
Standing on a peak of the Immortal Mountain of Castle of Black Iron, Heller, Edward, Agan and Aziz were watching the land being ravaged over 20 miles away.
That piece of land was newly formed in Castle of Black Iron a couple of days ago. Being on one side of the Immortal Mountain, it covered 2,000 square miles and was 1,000 m in thickness. It was especially used for Zhang Tie to practice his battle skills in Castle of Black Iron.
Based on Zhang Tie's current battle strength, of course, he could practice common battle skills in trouble-reappearance situations; however, he couldn't practice battle skills such as kinetic strike in trouble-reappearance situations; especially special javelins. After all, he couldn't find a blacksmith to make his own javelins in trouble-reappearance situations before taking them for practice. Although it was feasible theoretically, Zhang Tie didn't have enough time to waste in this way.
In Castle of Black Iron, the Immortal Mountain was picturesque and beautiful. Of course, Zhang Tie couldn't destroy it. Additionally, many people were living in Castle of Black Iron. Those people who were teleported into Castle of Black Iron had already taken Castle of Black Iron as their homeland. As the saying went, do unto others what you don't want others to do unto you. Even though Castle of Black Iron belonged to him, Zhang Tie didn't want to practice his battle skills on others' homeland and land in case of a mess.
Considering various factors, after a few years, Castle of Black Iron had a new space and terrain transformation in a couple of days.
In the eyes of those residents in Castle of Black Iron, this process was another demonstration of their God's ability to create a new world.
After the Elements Abyss in Castle of Black Iron connected with the elements in the Elements Realm, elements constantly poured into Castle of Black Iron. After 4 months of absorption, the basic energy storage of Castle of Black Iron could support an unprecedented topography and space expansion in Castle of Black Iron.
This space and terrain transformation of Castle of Black Iron was indeed unprecedented.
The basic energy storage that the Abyss of Elements converted each month could already produce 900 square miles of land with a crust thickness of 50000 m for Castle of Black Iron. If the crust thickness was reduced to 200 m, the land area that Castle of Black Iron could produce each month could reach 225000 square miles.
After negotiation and calculation with Heller, Zhang Tie determined that Castle of Black Iron could increase its land area to over 180,000 square miles.
Previously, the total area of Castle of Black Iron was only 4,000 square miles. This time, the total area of Castle of Black Iron increased by over 40 times to almost 50 times.
Besides the increase of land area, the average thickness of the earth's crust in Castle of Black Iron also increased from 200 m to 1,000 m. Among the 1,000 m thick earth's crust, the upper 500 m was fertile soil while the lower 500 m was hard rock. As a result, the entire Castle of Black Iron became thicker and heavier.
After increasing its land area by 40-50 times and the crust thickness by 5 times, it was really a great change for Castle of Black Iron.
Besides increasing the land and water area of over 180,000 square miles, Zhang Tie also added an ocean covering over 20,000 square miles in the east of Castle of Black Iron. The appearance of this ocean made the surface of Castle of Black Iron more complete. Castle of Black Iron was already a place with both land and ocean. It was not purely a land anymore. Although the ocean in Castle of Black Iron looked a bit small and might be more suitable to be regarded as a seawater lake, what counted more was that this ocean could become the breeding base of all the marine plants in Castle of Black Iron and make Castle of Black Iron more vigorous.
Of course, this new land included the exclusive training ground covering 2,000 square miles at the foot of the Immortal Mountain.
Looking down from the Immortal Mountain, this training ground covering 2,000 square miles was completely barren. This region was undulating and crisscrossed with ravines like a chessboard. Additionally, it was densely covered with hills and mounds of earth. Such a terrain could never be seen in the natural world. Therefore, it became the best place for Zhang Tie to test and train his battle skills.
At this moment, Zhang Tie was testing the power of his kinetic energy strike.
Compared to his performance in the trouble-reappearance situation 3 days ago, Zhang Tie fully displayed the more terrifying side of kinetic energy battle skills this time.
In Chaos, Zhang Tie's speed in the sky had reached 4478 m per second. At such a high speed, Zhang Tie threw out the javelin that he made in Castle of Black Iron these days.
The spear weighing 680 kg left Zhang Tie's hand at a speed of almost 1,600 m per second and reached over 6,000 m per second in a split second. Like a flame and a lightning bolt, it hit the ground below in 0.1 seconds. The kinetic energy strike of almost 12.9 billion Joules caused a huge pit whose diameter was over 30 m and whose depth was over 70 m. The invisible supersonic impact wave caused the ground within 500 m to undulate like waves, causing dust to rise and fall. Many rocks within dozens of meters were shattered and cracked …
After throwing out the last spear, Zhang Tie roared as he flashed a few times in the air and came to the mountain peak where Heller, Edward and Edward were.
"Congratulations, Castle Lord, you've mastered your kinetic energy strike!" Heller, Edward and Edward bowed towards Zhang Tie at the same time. (To be continued.)
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