Shen Siang's Spiritual Grain turned from transparent to pitch black, like a black hole.
Such an anomaly suggested that a "Heart Image" was about to appear, and Lu Li hurriedly Concentrated to observe carefully.
According to his guess, it should be like a chick breaking out of its shell, drilling something out.
But strangely, a sudden mysterious "gravitational pull" drew everything towards it in the field.
The force was very weak, and logically it shouldn't be worrisome, yet Lu Li's face suddenly changed color!
He saw that black hole-like Spiritual Grain suddenly wrapped in a ring-shaped Light Halo, slowly rotating around itself.
Lu Li exclaimed in surprise, "Accretion Disk!?"
An accretion disk refers to the disk-shaped structure orbiting a massive gravitational body like a Constant Star.
The size of the Spiritual Grain was far from qualifying, and the ones orbiting it were actually light—light captured by gravity!
