C852 Shocking Boulders and Terrifying Beasts' Roars

Niu Thirteen looked at the world with a serious expression. The apocalyptic world made him sigh.

In the end, his eyes fixed on a heaven-shaking boulder in the middle of the world.

The reason for that was because this frightening boulder was simply too enormous. It was difficult for one to not pay attention to it.

Furthermore, it was located in the center of the world