For several days, survivors at the Sanctuary split their efforts; some cleared the mountains of corpses outside the city walls, while others followed the Patrol Team to transport materials.
Basic materials such as stone, iron, and other frequently used Transcendent Minerals like Black Stone Ore, Tungsten Iron Ore, Cloud Pattern Ore were transported in batches to the central warehouse of the Sanctuary.
The Abyssal Rift, named "Resource Point One," had Tang Yu establishing three tiers of terraced walls around the rift and placing them according to the range of the defense buildings.
The outermost third-tier wall mainly featured Cannons, one-third of which Tang Yu had upgraded to level two. Additionally, every thirty meters, there was a level-one Mage Tower, making its defense far superior to the walls outside the Sanctuary.
On the second-tier wall, he constructed a three-tier Arrow Tower every three meters, totaling over two hundred towers… He had indeed invested heavily to fully secure this resource point.
Closest to the Abyss, Tang Yu built two new types of defense structures.
One was a pyramidal structure with a wide base and narrowing top, over fifteen meters tall, entirely black, occasionally flashing with iridescent runes.
The other defense structure was a cylindrical tower, striped in black and white, about eight or nine meters tall, with branching forks at the top. What drew the eye was the hexagonal, half-human-sized crystal floating above the forked top, slowly rotating and refracting dazzling brilliance.
[Energy Suppressing Obelisk: Constructs a domain field covering a certain range, effectively suppressing enemies]
[Building requirements: Level-four Territory, 20000 Source Crystals, 5000 stone, 3000 iron, 300 Tungsten Iron Ore, 100 Black Stone Ore]
When Tang Yu had upgraded his Territory to level four, he built an Obelisk in the villa district and personally tested it. Stepping into the domain covered by the Obelisk was like being affected by Weakness and other negative effects, possibly reducing his strength by half.
Even for powerful followers like Eileen and Tylon, within the range, they could only exert seventy to eighty percent of their Combat Power.
The Energy Suppressing Obelisk justified its high cost with its power.
This suppressing force field could also differentiate between friend and foe to avoid indiscriminate suppression. However, the Energy Suppressing Obelisk had one fatal flaw: its range was too narrow.
Covering a radius of two to three hundred meters, it was ineffective along the lengthy defensive line, unless he built one every five hundred meters.
But placed around the Abyssal Rift of "Resource Point One," it was just right.
These past days, Tang Yu had ordered detailed surveys of the Abyssal Rift, finding out its exact dimensions.
It was 305.6 meters long and 89.8 meters wide, nearly twice the length of the rift in Lindong.
Around the rift, specifically on the front lines of the first tier, Tang Yu built three Energy Suppressing Obelisks in an overlapping arrangement, where the domains of the obelisks overlapped, offering stronger suppression.
[Super Demon Prism Tower: Fires a concentrated energy attack towards foes in the front]
[Building requirements: Level-five Territory, 8000 Source Crystals, 1000 stone, 1000 iron, 300 Tungsten Iron Ore, 100 Prism Stone]
This level-five defensive building recently unlocked in the Territory, he had previously constructed a Prism Tower for testing.
The result was rather disappointing.
The Super Demon Prism Tower was a single-target attack with power that could rank top among all existing defensive structures. However, it had many downsides: its range was narrow with a reach of only two hundred meters, shorter even than an Arrow Tower… What dismayed Tang Yu the most, the tower required a five-second charging time before firing its concentrated energy beam.
Even after charging, its short range was quite problematic… In those five seconds, Tang Yu could easily run out of range.
And even if it hit an enemy, the power of the Super Demon Prism Tower was, at best, just a notch above the main cannon of a fully powered Floating Chariot, far from dealing an instant kill or inflicting fatal damage on a Transcendent Demonized Beast.
Tang Yu had nearly given up on the Prism Tower.
This time, because of the special terrain of the Abyssal Rift, he recalled the Super Demon Prism Tower.
Right on the city wall closest to the rift, he arranged ten Prism Towers, and during an attempt to attack the Demonized Beasts emerging from the rift, Tang Yu realized that the Super Demon Prism Tower… was a bit different.
The hexagonal crystals rotating at the top of the ten Prism Towers simultaneously emitted a blue-purple glow. Normally requiring a five-second charge time, the main tower that he controlled to attack the most troublesome beast among the Demonized Beasts instantly completed its charging.
The other nine auxiliary towers fired blue-purple beams of light, not to attack the enemy but to connect with the hexagonal crystal on the main tower.
In this mode, the main tower's attack needed almost no charging time.
As a system owner, a Lord controlling defensive structures with the God's Eye View… how could he not know about this operational mode?!
Couldn't the system provide a manual!
Tang Yu named this mode "Linked Mode" and conducted some trials. In Linked Mode, by increasing the number of auxiliary towers, the charge time could be reduced, or it could fully charge for five seconds to emit a beam of light with immense power… When fully charged, its short range could even be somewhat extended.
With ten Super Demon Prism Towers linked, although there were no targets available for a practical test, Tang Yu estimated that their power would be sufficient to inflict fatal damage on Transcendent Demonized Beasts.
Resource Point One was secured!
These past few days, Tang Yu had been very busy, extremely busy.
The defense setup of Resource Point One had taken up much of his time and energy… Building so many defense structures made even him dizzy!
In addition, the construction of the Green Lin Railway was also on the agenda.
Experts from Lindong had already planned out the specific route and, escorted by a team of Ancestor Dragon warriors, started surveying along the route.
Green Shadow was responsible for defending the railway line… in short, constructing Arrow Towers along the railway line to guard against attacks from Demonized Beasts.
—There was no need to establish a Sub-territory; defense structures could be constructed using personal domains.
It was just more troublesome, the farther from the territory, the more of various materials, other than Source Crystals, were consumed. Fortunately, this time cooperating with the Lindong Military, which was wealthy and well-staffed, Tang Yu proposed having them collect wood, stone, and iron materials and transport them to the railway line.
Using locally sourced materials for construction could avoid massive consumption of basic materials… He could also take the opportunity to skim off some materials, since the Lindong Military wouldn't care about such trivial amounts, definitely.
On the other hand, quite unexpectedly, a high-ranking official from Lindong, Gu Dong, actually came to visit in person.
As a competitor, and on the losing side, Gu Dong appeared very calm on his first visit, wearing a warm smile. After a discussion, both parties were very satisfied and walked out of the castle.
Gu Dong wanted to become a distributor for Green Shadow's rune Equipment, selling it to other large Sanctuaries to earn a profit margin.
Tang Yu was also happy to have an additional channel for equipment sales; sharing some profits would rapidly expand the sales reach and enhance the brand recognition of Green Shadow.
It was a win-win situation!
Having survived the Demon Tide crisis and demonstrated the strength of the Green Shadow Sanctuary, the whole of Lin City and even the surrounding regions no longer had anyone daring to provoke them; even the spies within the Sanctuary had decreased.
The territory was entering a period of rapid development.
In the blink of an eye, two months had passed.