The king of keys' soul was difficult to describe. Rather than a tree, it looked more like a person, whose outline was a glossy silver, who had grown from a seed. 

The soul of the king of keys, who was poised to take over the third realm, was human-shaped...

The humanoid's chest had a bright red seed embedded within it, which was giving off a powerful and ancient aura.

Zhang Lie frowned. "If I'm not mistaken, that must be the core."

As Zhang Lie struck, a rainbow arc accompanied his slash, as though an aurora were visible in the sky. It shone in all the colors of the rainbow, momentarily hypnotizing anyone who looked at it.

With Guicang in hand, Zhang Lie flew through the void. His sword shone as brightly...