Chapter 409: Refining failed.

"Sizzle…"
As three stars formed in a row, electric flashes flickered on the black energy ball, as if countless silver-white spirit snakes were moving around. The pressure from the lightning was so terrifying that it made people's hair stand on end and their hearts chill.
"Three stars, three stars, it's already higher than when I first refined the Thunder Dragon!"
"A three-star thunder tribulation, it really is a three-star thunder tribulation. Vice President Zhuge's understanding of...