Qin Chen entered the mountain cave.
The interior of the cave was utterly dilapidated, incredibly messy.
Yet at the same time, as soon as he entered the cave, even before entering, Qin Chen had already sensed a terrifying energy fluctuation.
It wasn't until Qin Chen ventured deeper that he discovered the source of this energy fluctuation.
It was an azure crystal, about the size of a fist, irregular in shape, with faintly visible phantasms of Azure Dragons swimming around its surface.
It floated there, suspended in mid-air at the center of the cave.
Below it was a black box that Qin Chen found somewhat familiar; however, this black box had been opened and laid casually.
Qin Chen's gaze shifted to the crystal.
His heart vaguely suspected something but did not dare to confirm.
Within those ink-black eyes, a thrilling emotion became intense and rich.
"As expected! The Gatekeeper of the Sixth Level has been killed by the War Demon!"
