What Wu Chang saw in the photo was a copper plaque, about the size of a fist, with abstract flames carved on it due to the limitations of its manufacturing process.
The craftsmanship and style of the plaque suggest antiquity, likely an artifact, but it was spotless, as if it had been scrubbed with a steel ball.
He continued flipping through without any change in expression, and the All-Knowing Crystal showed no reaction to the other objects.
He casually picked out a few photos and asked Cui Chengze about the origin of the artifacts in the photos.
When asked about the copper plaque, Cui Chengze seemed to hesitate.
After thinking for a while, he uncertainly said:
"A few years ago, during an archaeological dig, a small buried city was unearthed, with a limited urban area. The archaeological team found this copper plaque at the very center of the city."
