Qiu Tianshu rose to her feet and looked toward the several objects Lin Tao had waved out, their firefly-like radiance flashing brightly. A glint briefly flickered in her eyes before quickly fading.
Those several objects emitting dazzling firefly-like light were a special kind of luminous magical artifact.
Their offensive power was negligible, but they could be driven by spirit stones to emit light. In some ancient cultivators' cave abodes, one or two occasionally appeared.
Although this kind of artifact seemed to have little use, its refinement was extremely difficult, because the materials used within it were exceptionally special—an extraordinary material containing its own luminescence.
Such strange materials had already become exceedingly difficult to find in the Cultivation World. Luminous stones could shine, but they were difficult to refine and activate.
Although some treasures, magical artifacts, and even spell formations could also emit light, their radiance was truly incomparable to that of these artifacts. The light given off by these artifacts contained no energy whatsoever, and they did not require a cultivator to personally activate them.
Thus, ancient cultivators generally used them to illuminate their cave abodes.
Using them in this mountain cave was even more suitable, as there was no need to fear accidentally triggering that terrifying spell formation.
Although these artifacts were of little practical use, they were exceedingly rare. Yet Lin Tao had produced five of them in one go, naturally causing Qiu Tianshu some surprise.
The five luminous artifacts had illuminated the entire immense mountain cave.
Having just endured a brush with life and death, Lin Tao now held a fear of the restrictive spell formation that came from the very depths of his heart. No one, whoever they were, would dare harbor any further thought of meddling with that formation.
"This Sumeru spell formation is not