The Rune Refining skill advancement area of the entire Time Tower covered the equivalent of five football fields. This area lay within a semi-enclosed space made of crystal structures, resembling an enormous Mongolian yurt, with an entrance leading into the giant crystal yurt.
Filled with immense curiosity, Zhang Tie entered the Rune Refining skill advancement area through the entrance of that enormous crystal yurt.
Unlike the spacious simplicity of the other areas within the Time Tower, everything Zhang Tie saw inside the Rune Refining skill advancement area, within that giant crystal yurt, left him unable to recover his senses for a long while.
From the outside, this Rune Refining skill advancement area appeared to be only a few football fields in size. Yet upon entering, Zhang Tie was shocked to discover that the interior of the area enclosed by the enormous crystal yurt was more than a hundred times larger than it appeared from outside. It was a strange space, a space small outside and vast within. Though it was not as powerful as the Castle of Black Iron, it was still the only space Zhang Tie had ever seen, aside from the Castle of Black Iron, that could admit other living beings.
This space was a wilderness—or, more accurately, the entire Rune Refining skill advancement area was like a strange themed amusement park.
The moment Zhang Tie entered, he saw a barren stretch of earth carrying the scent of soil. Seeing earth inside the crystal tower, Zhang Tie thought his eyes were playing tricks on him. But after stamping on it with his foot and even picking up a little dirt to rub between his fingers, he confirmed that it was indeed soil. The layer of earth seemed exceptionally deep, and the soil was no ordinary soil either, but