Only when he looked did he realize that the Scruffy Old Man was doing something even stranger. He neither came to his rescue nor left, but instead circled him, laying out a formation.
At regular intervals, he set down an immortal crystal stone-and not an ordinary one, but a five-source immortal crystal stone.
Immortal crystal stones were precious enough already, but five-source immortal crystal stones were more precious still. They corresponded to the five elements, coming in five types: metal, wood, water, fire, and earth. Not only did they contain far more energy than ordinary immortal crystal stones, but they also held pure elemental power, making them exceptionally effective for laying out formations.
By now, the Scruffy Old Man had placed more than five hundred five-source immortal crystal stones around Lu Feng, each of a different type: metal, wood, water, fire, or earth.
Once the formation on the ground was complete, the Scruffy Old Man swept his hand toward the sky, sending thousands of five-source immortal crystal stones flying out. Their ghostly glow illuminated the Stone Cavern, creating an utterly eerie sight.
Lu Feng desperately wanted to ask his Shabby Master what he intended to do, but because of the five-colored golden core in his lower dantian, he could not move at all. He could not even make a sound and could only watch helplessly.
Those thousands of five-source immortal crystal stones did not fall, but hovered in the air. Even with Lu Feng's limited knowledge, he could tell that they had formed another formation overhead, resonating with the one on the ground.
Once the formations were complete, the Scruffy Old Man raised his hand and struck out with a ray of mystic light, hitting the formation directly. In an instant, all the five-source immortal crystal stones blazed with dazzling