With a single motion, Bu Er pried open a gap in the crack in the ground.
Beneath that opening, part of a bronze ring came into view.
When he widened the opening a little more, the entire bronze ring appeared before Yang Qing and the others.
The ring looked just like a door knocker hanging on the gates of someone's estate.
Even as Yang Qing was thinking this, Bu Er reached out and tugged on the ring.
A humming sound rang out, as though a wind had risen somewhere, and its song reached the ears of all three men.
A series of cracking sounds followed, and more fissures began to appear in the previously smooth ground around the ring.
Eventually, those fissures became a tangled web of cracks crisscrossing in every direction.
The cracks multiplied until all the earth around the ring crumbled to dust.
As the dust drifted away, an ancient bronze door appeared before Yang Qing and the others.
On this continent, anyone who could afford even a small bronze furnace was already considered among the wealthiest in their region.
From what Yang Qing knew of the Eastern Splendor Royal Family, Emperor Zhetian's bronze cauldron had been regarded as a priceless treasure. In the end, it had been taken into the Imperial Mausoleum along with the legendary "mortal remains of the Sacred Emperor."
Yet here, bronze had merely been used to make a door.
It was no priceless treasure, nor anything worth hiding away. It was simply a door.
From this alone, the Immortal Thunder Kingdom's strength in its day must have far surpassed that of the Eastern Radiance Ancient Kingdom.
Sadly, a kingdom possessed of such tremendous power had vanished from the world now that its people had died out.
During the brief moment Yang Qing and