After passing through the dense jungle, the expedition team arrived at a hidden entrance concealed beneath vines and dead branches.
Clearing away the debris at the entrance, a thick metal door blocked the expedition team's path. Under the illumination of their lights, the door emitted a faint blue glow.
"There's lanthanum metal mixed in here," one of the expedition team members said.
Lanthanum metal is a special mineral in this world, known for its considerable anti-magic properties and its ability to significantly hinder spiritual power.
This unique property has led the Four-Eyed People to widely use it in safes, vaults, and some secret locations.
Even before the Great Cataclysm, lanthanum metal products were widespread across various important sites in this world.
"Measure the content," the leader said.
A team member stepped forward, holding a device resembling a camera. He pointed the device at the door and switched it on.
