After leaving their airboat, it only took Zhang Tie and Bai Suxian a short while to arrive at the core region of Centralpolar Mountain.
On the way, Zhang Tie felt strange as not a single bird could be seen within 600,000 square miles. Not until they arrived at the core region of Centralpolar Mountain did he know why Centralpolar Mountain could be listed as one of top ten perilous lands in the South Border.
When they were about 150 miles away from the core region of Centralpolar Mountain, the landscape suddenly changed as the lush woods were instantly replaced by bare, pitch-dark rocks and crisscrossed gullies. Because of the unique geographic environment, Zhang Tie saw many mutated venomous living beings among those rocks and gullies.
Some airship wrecks spread over the bare surface of the land which was covered with black spots; perhaps they were eroded by something. Besides, Zhang Tie saw many beast bones.
