"It turns out those Strangers' civilization is called the 'Golden Bronze Civilization'...
Lu Yuan surveyed the surroundings and casually explored. He quickly found the entrance to the ruins beneath a glacier.
It was an ancient titanium alloy gate, untouched by any rust over time. The densely packed gear-like engravings proved that this civilization indeed belonged to the Alien Civilization.
Nearby was a metal tablet made of titanium alloy.
The all-knowing secretary, Miss Conch, studied it for a long time and translated: [This is a shelter left by the Golden Bronze Civilization, containing most of our civilization's research data.]
[A key is required to open it normally. Forcing the entrance will cause the internal data to self-destruct.]
[Please contact the surviving Strangers left by our civilization to obtain the respective key.]
