The small transparent sword was the Heaven Swallowing Holy Light Sword, and the small dark snake was the Thalidomide that was born from the space.

Lightning attribute spiritual energy, other than some special existences, was originally a silvery white color. Slowly it would turn purple, and finally, it would turn deep blue and purple.

Of course, this was a common type of thunder. There were some special existences such as gold, black, or grey.

As for the lightning inside the Heaven Swallowing Holy Light Sword, it was all black coloured Terminator Thunder, a synonym for destruction, it was the deep black color of darkness. In terms of attack and destructive power, it was definitely one of the top existences among all the known lightning.

This Terminator Lightning was an origin energy that Ling Yun had obtained by risking his life in a spatial crack in a forbidden ground.

"Thalidomide, I need your help!" Looking at the black Thalidomide that was constantly changing forms in his palm, Ling Yun said softly.

The Thalidomide turned into a palm-sized black Qilin. It blinked its eyes and looked at Ling Yun suspiciously.

After chattering for a while, the little black qilin turned into a streak of black lightning with a 'shua' sound and rushed into the sea of black lightning. It happily swam around like a fish in water as it absorbed the bolts of lightning.

Swish!

Ling Yun quietly waited, curiously looking at the Spirit of sword in front of him, gently caressing it, a black bolt of lightning shot over, it was the Thalidomide that was just absorbing the lightning in the sea of lightning.

At this moment, it had grown a lot thicker and deeper than before. Black lightning flowed all over its body as crackling sounds of thunder could be heard.

With a thought, a black stone the size of a fist suddenly appeared in front of Ling Yun and was caught by him. The space around the black stone became distorted and ripples appeared on the surface of the space.

The dimensional stone that he had obtained in the Ten Thousand Beast Temple had already been used to refine two low level Universe Ring for Qin Feng and Cai'er. The one in his hand was found among the Marquis Wenyuan's Mansion's Martial Sovereign Universe Ring that had fallen a few days ago.

Clang!

A clear and melodious sword hum came out. Spirit of sword Little Tuntun appeared beside the empty spirit Stone, and her thoughts moved.

"This is for you!" Ling Yun laughed and gave the empty spirit Stone to Little Tuntun.

Little Tuntun immediately became like a kid who had acquired a new toy. She twisted her body and wrapped herself with the empty spirit Stone. After playing for a while, the Spirit of sword disappeared with the empty spirit Stone.

A faint smile appeared on Ling Yun's face. As a high art refiner of the seventh step, he knew that if the spirit weapon wanted to have true space, it was like a secret realm where they could only hold living beings. They had to integrate with a large number of empty spirit Stone or empty Spirit Crystal to stabilize the space.

The space inside the Heaven Swallowing Holy Light Sword was also real and illusory, appearing to be virtual yet real. It could carry thunder and even the Thalidomide, this kind of unique life form that was born in this space, but it could not carry real life forms, like him.

Furthermore, once the Spirit of sword controlled the to refine the empty spirit Stone into this space, this space would stabilize, and one day, it would become a real space, just like inside the violet ring.

However, the current Heaven Swallowing Holy Light Sword was still far from that, but after refining this empty spirit Stone, he reckoned that this space would have the effects of a Universe Ring's storage.

Ever since he found out from Zi Luo that semi-divine could channel the power of heaven and earth for its own use, Ling Yun came up with an idea.

If this world within the sword was truly formed and had its own origin, then the structure would give birth to its own laws. As the master, wouldn't he be able to use the great power of this world for his own use?

This was just his guess. He had to wait and see if he could fulfill it or not.