Rubbing his eyes, Guan Heng looked at the time-space shuttle curiously: "What is this thing" In the blink of an eye, the time-space shuttle landed on the ground. Three people came down from it, namely Iron Man in armor, Thor with a hammer on his waist, and Banner who was still a normal person.,Pointing to the massive cave before them, Daniel said, "Walk to the end of this cave, and you will face your greatest opponent in life. Defeat him, claim your inheritance, and you will have passed this trial!",A powerful force surged through his body, and a black dragon pattern instantly appeared on Guan Heng's chest. This was the mark of the Divine Dragon's Son, the inheritor of the Iron Fist!。