The two of them stared at the metal iron plate and were both slightly stunned.
"What is this iron plate?" Feng Ge asked, blinking.
After studying it for a moment, Luo Zheng said, "Let's get closer and take a look."
The Thunder Wings behind him beat lightly, and the two of them moved close to the iron plate. Luo Zheng reached out and touched it, a trace of icy coolness running from his fingertips.
Feng Ge also touched it curiously before saying, "I wonder what this iron plate was made of. It actually isn't affected by the erosion of this energy."
Luo Zheng pondered for a while. Power surged out from the World Within and slammed viciously into the iron plate.
"Bang!"
A muffled boom rang out, but the iron plate remained completely unmoved. Its astonishing sturdiness was plain to see.
Luo Zheng's brows drew together slightly.
Regardless of what substance this iron plate was made of, there was no way they could carry it away. Their most urgent task was to pass through the Energy Vortex, and the iron plate blocking their path had naturally become an obstacle.
"We'll go upward," Luo Zheng said, raising his head for a look.
"Crackle!"
Another bolt of lightning shot straight upward, and Luo Zheng drew down another band of energy.
The two of them proceeded upward little by little along the iron plate. After traveling more than twenty zhang, they still hadn't managed to get past it. The iron plate was far taller than Luo Zheng had imagined.
Feng Ge's gaze flickered. "Let's go to the left."
"Mm." Luo Zheng nodded.
They headed left again. This time, after only two or three zhang, they truly reached the end on the left. The iron plate formed a right angle there.
When Luo Zheng