### Chapter 2156
Just as Xu Nian's true form and Wind Attribute Avatar were in seclusion.
The Gold Attribute Avatar, however, was taken along with a group to the entrance of the Northern Wilderness Battlefield.
The entrance to the Northern Wilderness Battlefield took Xu Nian by surprise.
This entrance was a massive metallic ring, approximately a hundred meters in diameter.
The metal was crafted from Nurture Spiritual Treasure Level artifact refining materials, furthermore augmented with a very strong Divine Pattern Array.
How much Nurture Spiritual Treasure Level materials would such a gigantic ring require?
For a moment, even Xu Nian felt utterly amazed.
And behind this metallic ring was a gigantic space vortex.
This space vortex was extremely stable, and from within, emanated a dense ancient aura.
This powerful aura gave Xu Nian a strong sense of oppression.
