Light and shadow collapsed once again—the spacious hall and the massive device at its end suddenly disintegrated into countless fragments of light and shadow, collapsing like an avalanche back into the dim appearance of a cave. Everything seemed like a brief illusion, an errant projection of another reality onto this dimension.
However, Duncan knew that he really "saw" it, and he could still see it now.
He looked towards the depths of the dim cave, blinking several times—during each extremely brief moment, with each blink, he saw something emerge in the instant his eyelids closed and darkness descended, the grand hall itself.
Gradually, he realized that two realities were overlapping here, in the depths beneath Holy Land Island, the "reality" that lay even deeper was unobservable by ordinary means, but it appeared within the 0.002 seconds of every blink of his eye.