A Battle With The Wailing Revenant.

Looking at the complicated arrays, a smile crept up Mo Jian's face. From the Codex of a Thousand Arrays, he had come across something like this before.

The Nether Gate Formation.

The Nether Gate Formation was a dangerous and sinister array that opened a temporary gateway to the demon realm.

Such a sinister formation was not something easily found in modern times. Against ancient formations, many formation masters would have been helpless—but not him.

After studying the formation for a few seconds, Mo Jian came up with a plan.

"To destroy the formation, I can only use the Sunlight Dispersion Array…"

But the real problem was that the entire area was shrouded in darkness, and there were still a few hours before sunrise. 

Apart from that, the Sunlight Dispersion Array was a Tier-2 array, and he was not yet capable of setting it up.

Still, he chose to proceed.