After saying that, Chu Haoyue led the trio into the valley. Inside, there was a huge metal door that was at least 30 feet tall. No one knew what kind of alloy it was made of.
The huge metal door locked the path leading to the valley. Chu Haoyue made a hand seal and entered the code. Then, a small door about ten feet tall on the huge metal door opened up. The opening was about two meters wide. Everyone saw that the huge metal door was actually more than 30 feet thick. Behind the small door was a passageway that was built for people to pass through.
The moment the small door opened, the four of them instantly felt a wave of heat gushing toward them. This heatwave was comparable to the daytime temperature in Exile Zone 66.
However, Chu Yunfan could feel that it was different from Exile Zone 66, which was just unbearably hot. In this place where Fire Spirit Energy was everywhere, the air here was scorching hot.
