C891 The Four Brothers of the Wild Who Were about to Start Their Challenge

The Four Desolate Brothers were poised to take on their next challenge.

Soon, everyone witnessed the daunting trial of the Immortal Tower's third floor.

A boundless expanse of the cosmos.

A celestial river that spanned the horizon.

And there, dominating the heavens, was the ancient and immovable Yin-Yang Millstone.

The sight left everyone in awe.

At the base of the Immortal Tower