During the same period.
Originating from the Primordial Sea of Heaven, occupying the middle position of the river-shaped formation, the Ancient Abyss Tianhe—one of the Immortal Realm's "Three Great Tianhes"—was pouring energy and matter downstream in a vast, surging torrent.
These three colossal Tianhes were like the arteries of the universe. With them at their core, they continuously branched out into countless crisscrossing major tributary Tianhes, which in turn divided into innumerable medium and small branches as dense as ox hair. Together, they nurtured the vast, resource-rich Immortal Realm and sustained its myriad living beings.
For countless years, this miraculous process had continued, and no one knew how many more years it would endure.
Unfortunately, ever since the Devil Race's invasion, the Immortal Realm had no longer known its former peace.
Today, the winding and majestic Ancient Abyss Tianhe at the center had long become one of the boundaries between the Immortal Realm and the devil-controlled territories.
Relying on the Ancient Abyss Tianhe's geographical advantages, the Immortal Clan had built countless defensive fortifications and established one defensive zone after another along it.
On the western bank of the Ancient Abyss Tianhe, somewhat upstream, stood a border defensive zone belonging to the Immortal Realm.
This defensive zone was called the Wuyue Defensive Zone. It belonged under the Wuyue Divine Palace and had been guarded by the Wuyue Divine Palace year-round.
Of course, since the Wuyue Divine Palace currently had no Immortal Emperor, Immortal Emperors from other factions often came to help defend this zone whenever tensions rose. Nearly a thousand years ago, Immortal Emperor Ziwei had guarded it for a long time.
Wuyue Defensive Zone Command Headquarters, Informatized Combat Command Center.
This informatized combat command center had only been completed a few centuries ago. Several Sacred Alliance construction teams, including