Illusion

Julian's eyes widened in shock as the scene before him changed. He watched as the red pixels from the fire ball that dissipated earlier, gather back into Augustus' palm.

But then, something even more astonishing happened—the blue pixels which had been freely floating in the air(mana), suddenly began moving toward his grandfather's palm. It was as though they were drawn to him by some invisible force.

And in an instant, the very same red pixels in Augustus' hand transformed into vibrant blue pixels magically. The fire ball was gone and now replaced by a swirling water ball as the blue pixels pulsed with energy. 

Augustus chuckled at Julian's stunned expression. "Now, this is a water ball," he said.

Julian could hardly believe what he was seeing, his grandfather had easily shifted from one element to another.

"How did you do it, Grandpa?" he asked, his voice filled with curiosity.