The dust gradually dispersed, revealing the two tightly closed doors, only now there was a gaping hole in the center of the doors. At this moment, not only was the young man monitoring Zuo Feng from afar dumbfounded, but even the guards inside who had already prepared were also stunned on the spot.
Beneath the black lacquer surface, the inside of the door appeared verdant, proving that the door was indeed made from high-quality green ironwood. In the Ye Lin Empire, green ironwood is a relatively common tree species, renowned for its toughness. Generally, green ironwood with a growing cycle of three to five years can be used to make many everyday tools, whereas green ironwood that has grown for over a decade can be used to make high-end furniture.