"Thump, thump, thump!"
"Drip, drop, drip!"
Beneath the reconciled earth, a series of hair-raising and eerie sounds constantly echoed, unceasingly stabbing at the minds of the two figures.
In this gloomy main hall recessed beneath the ground, the pathway leading toward the Sin Cave was filled with vast areas of extremely empty black soil. Piles of skeletal remains surfaced upon the surface of the soil, carrying a particularly intense chill, while bursts of gloomy, frigid, demonic winds continuously emerged to make one's mind dazed and confused.
"Xun'er, be careful. The stronghold of Sin is probably guarded with extreme strictness."
Looking toward the depths of the passage, patches of evil blood mist billowed. These blood mists were filled with a strange power that made the vision of Xiao Yan and Xun'er extremely blurred, rendering them unable to penetrate it by even the slightest bit, even when using Spiritual Power!
The moment their Spiritual Power even touched these eerie blood mists, it was instantly devoured by them!
"Mm."
Seeing this, Xun'er likewise nodded heavily, well aware of the gravity of the situation.
"Swoosh, swoosh!"
Within the dim blood-mist passage, there was only a single path. However, as Xiao Yan and Xun'er advanced, they could occasionally see bundles of blood-red halos slowly peeling off from the surrounding soil, transforming in the blink of an eye into patrolling guards that protected the inner hall.
The blood-red soil, blood mist, evil power, and human figures-every single scene unfolding before their eyes was a shock to their minds. Nevertheless, both of them were individuals who had witnessed grand scenes before, so they quietly relied on the cover of their Spiritual Power to make their way inward.
"Creak."
The strength of these guards was almost entirely below the Eight-Star Dou Xian level, allowing Xiao Yan and Xun'er