It was a solid sphere. With his naked eyes, Lin Yi could not distinguish whether it was pure white, grayish white, or even some other color, nor could he determine what it was made of. His first impression was only that it was probably some kind of stone.
Several concentric circles were carved into the stone, looking like an eagle's eye, and at the center of that eye seemed to be some sort of symbol cast from molten gold.
And what actually emitted the light was this very stone.
"So this is the 'light bulb'?!"
Lin Yi sucked in a breath, an indescribable feeling rising inside him. Only now did he realize that he seemed to have had an enormous misconception about the streetlamps on this Campus.
"Could all the lights on Campus come from these miraculous stones?"
"Wait!!" Lin Yi's pupils trembled. "That's why conventional lighting devices can't drive off Nonhuman Classmates!"
Little Genius's flashlight had had no effect after the classroom lights went out because what could drive off Nonhuman Classmates was not light at all, but the... "light" emitted by these miraculous stones?
"Hang on, wait..."
Speaking of light...?
Lin Yi instinctively thought of the stone bridge leading from the Lookout to the Castle. Shrine-like candle flames stood on its piers. Those flames... seemed to be the same sort of thing as these miraculous stones?
And the Old Kerosene Lamp!
"Hiss..." Lin Yi quietly drew in a breath, instantly thinking of the words "supernatural trait."
The radiance emitted by objects possessing supernatural traits was the key to driving off Nonhuman Classmates!
"The energy powering some of the illuminated facilities on Campus isn't 'electricity,' but something with a supernatural trait!"
"That makes sense!"
"How else could electrical circuits be laid to overcome the effects of Layer distortion and