597 True Inheritance Secluded Domain, Unexpected Event

The appearance of two great Immortal Gu was way out of her expectations, Mo Yao was very surprised.

What was even more scary was, Fang Yuan had made ample preparations!

The Gu worms he used were originally treasures kept inside the crystal walls. His killer move was even more perfect than grey meltdown, and had stronger effect.

To get to this point, it was not something a single person could achieve, in fact, this could not be achieved with merely decades of set up. Huge amounts of strength and effort needed to be invested, at least hundreds of years of infiltration in order to hide all the Gu worms inside the crystal walls, and to prevent the Gu worms from being taken away by people, they needed to prepare several of each Gu.

All in all, this was not something a person or an ordinary force could accomplish, it had to be a super force with Gu Immortals at least!

Against Mo Yao's suspicion, Fang Yuan smiled lightly and did not speak.