C597 Supreme Flame Rune

Boundless Life and Death Energy gushed out of Gu Xuan's body, spiralling around his body like two divine dragons.

"Black Turtle, summon!"

The void trembled as Black Turtle's huge head emerged from the void.

It opened its mouth wide and swallowed the Heaven Slaughter Sword in one gulp.

And then, Black Turtle's head disappeared, returning to the Book of Life and Death