The Great Luo Immortal Sect had built the Flame Furnace Fortress in the Endless Sea, with True Immortal Su Yu stationed there at all times to monitor the Demon Race's every move.
On the side nearer the Central Continent, although traces of the Demon Race were less frequent than near the Eastern Continent, the Nine Heavens Sacred Ground likewise maintained a floating island high above the sea to monitor them, just in case.
Stationed here was True Immortal Mu Feng, who had attained Dao Integration over ten thousand years ago.
Thanks to the Nine Heavens Sacred Ground's formidable reputation, the Demon Race seldom dared invade these waters. Even the occasional invaders were below the Heavenly Demon level, so this True Immortal usually enjoyed considerable leisure.
Today, however, the situation was clearly different.
A piercing alarm suddenly rang out from the Nine Heavens Immortal Light Formation, which scanned once every two hours and detected fluctuations of pure yang immortal power within a million li.
The fluctuations returned by the formation's scan appeared clearly as a red dot.
The news was swiftly reported to the Loose Immortal responsible for the Nine Heavens Immortal Light Formation.
As this Loose Immortal ordered the Nine Heavens Immortal Light Formation to begin full-frequency scans, the readings grew increasingly precise. With every scan, that red dot leaped forward at an incredible speed.
By the time its position was fully locked down, the red dot was already less than two hundred thousand li from their floating island.
Especially considering the energy intensity registered by the formation...
"A pure yang true immortal!"
The Loose Immortal cried out in alarm and immediately gave an order. "Quick! Raise the formation!"
At the same time, his divine sense erupted, reaching straight into the cultivation chamber of True Immortal Mu Feng, the floating