C1144 The Theory of boundary stone

A streak of silvery-white light flashed through the dark space as it flew towards Luo Yu. In the dark space, it was extremely eye-catching.

Luo Yu immediately reached out his hand and grabbed at the beam of light as if it was a conditioned reflex.

It was a stone the size of a palm. It was entirely silver, and it emitted a silver-white radiance. It was ice-cold to the touch