Chapter 551: Return to the Seven Rings

One year later.

In one year's time, Grimm had finally crossed the Holy Tower of Six Rings, the wilderness between the holy towers, and was halfway through the Holy Tower of Seven Rings, returning to its ten-thousand-meter Tree of Life Defensive Barrier range.

By activating the Principal Will of the Sorcerers World, Grimm, while riding the Thousand-Eyed Carcinus, successfully managed to penetrate the interiors after creating a small ripple on the vast Tree of Life's Defensive Barrier.

The enormous shadow of Thousand-Eyed Carcinus was casted on the ground, becoming one with both the many huge mechanical voidships and slave monsters in the sky, carrying Grimm and flying to his Demon-Hunter Castle.

In a year's time, Grimm had finally learned both the knowledge and principles of Mixed Toxin Refinery, which was Grandmaster Netherheart's improved Male Toxin Refinery, on the back of Thousand-Eyed Carcinus.