Ling Tianyu took out the Seven-Colored Key obtained from the sacrificial temple, stepped over the collapsed area, and came to the stone lion on the left. He looked closely and indeed found a groove.
Ling Tianyu helplessly shook his head, realizing he hadn't noticed it earlier. His observation hadn't been thorough, and this spot was indeed hard to find.
The key was inserted and turned.
"Boom—"
The stone door slowly opened, revealing the underground palace.
A long-sealed aura emerged, and Ling Tianyu waved away the dust with his left hand.
Seeing this, Haotian Saint Supreme and others were delighted and hurried forward.
"Elder Brother, the underground palace is safe; just keep walking straight," Song Lan'er transmitted to Ling Tianyu.
