Qin Fengming gazed thoughtfully at the towering crystal wall and the emerald-green crystal wall beneath it.
Within the perception of his powerful divine sense, strands of strange, rippling light, all but invisible to the naked eye, flowed rapidly between the towering crystal wall and the smaller one below.
When the emerald glow flashing across the green crystal wall enveloped a cultivator, it actually swept strands of pale-yellow fluorescence from their body.
Within that pale-yellow fluorescence, he sensed the peculiar yin-energy aura unique to Black Mist Island.
Ever since entering Black Mist Island, Qin Fengming had sensed that its yin energy differed from that of other places. Though the difference was exceedingly faint, he had still detected it because he cultivated Ghost Dao techniques.
Now, seeing what happened between these two kinds of crystal walls, he suddenly understood.
The Five Great Super Sects' so-called monitoring of cultivators entering Black Mist Island did not actually involve cultivators watching images. Instead, some immensely powerful restrictive spell detected the quantity of treasures they carried from Black Mist Island, all bearing its highly distinctive aura.
At this realization, Qin Fengming's heart suddenly stirred.
Storage bracelets were indeed treasures capable of concealing the auras of their contents, but that did not mean they could suppress those auras completely, without the slightest leakage.
Even now, with his powerful divine sense, he could easily detect the auras of certain treasures within other people's storage bracelets. Of course, those auras were extremely indistinct, and he could not identify the specific items.
With some powerful formation, it would naturally be possible to gather a particular type of aura from within a storage bracelet and manifest it in some way.
Such a restrictive spell was not particularly difficult, when all was said and done. Even Qin Fengming was confident that he