Before long, Marquis Nanlong and his two companions slowly flew up to a cave in a towering pale-yellow cliff and came to a stop.
The cliff was immense, stretching beyond sight in both directions. Near its lower section was a pitch-black Mountain Cave some seventy or eighty feet wide, with no telling where it led.
"We're here. Once we pass through this Mountain Cave, we'll reach the inner valley. There are no restrictions inside, but there is a stretch of Polar Yuan Light over ten li long. Without the Two-Instrument Ring, getting through would be impossible. Fellow Daoist Han, we'll be relying entirely on you in a moment." Marquis Nanlong let out a long breath and turned to Han Li.
"Brother Nanlong, why must we go through this Mountain Cave? Can't we cross the cliff somewhere else?" Lu Weiying stroked his chin, looking puzzled.
"I imagine there must be something strange about this cliff?" the youthful Han Li said after sweeping his gaze over the surrounding rock face.
"Fellow Daoist Han is right. Brother Lu, try using a Magic Treasure or a Supernatural Ability on this cliff, and you'll understand." Marquis Nanlong stroked his long beard and spoke calmly.
"Oh? Is there something special about this cliff?" Lu Weiying turned his palm over, revealing an oddly shaped Short Blade. With a casual flick, he sent it streaking out as a ribbon of white light that slashed fiercely into the cliff.
Clang! As the Short Blade struck the cliff, it erupted with dazzling white radiance. But the next moment, the old man in Confucian robes looked slightly alarmed and beckoned with his hand, instantly retrieving the blade.
On closer inspection, the Short Blade had left only a shallow cut about an inch deep. Within it, tiny grains glimmered faintly with silver