Steel Fortress Advance

12/19/2025

Chapter 1507

Originally, Leon estimated that it would take half an hour at most for a Steel Fortress to fully stabilize after appearing here. Now, it’s clear he completely underestimated the power Northend’s mages could unleash when working together.

Every step and timing had been calculated from the moment this fortress began its transport toward the front. By the time it arrived, the battlefield had already advanced five hundred kilometers.

From its arrival to full completion, the fortress took only ten minutes!

In just ten minutes, this Steel Fortress required no further attention. And these lunatics—just to ensure this Bastion Node wouldn’t negatively affect the future Hexagram Formation, they transformed the land within a dozen kilometers into a mage’s version of reinforced concrete...

As time passes, this area will keep expanding. In less than ten days, this fortress will merge with another one dozens of kilometers away, instantly creating a colossal swath of mage’s reinforced concrete stretching for tens of kilometers...

Just imagining all these fortresses linked together makes Leon feel a little dizzy...

These maniacs really want to go all out—a few thousand kilometers of land turned into a single, massive slab of mage’s reinforced concrete, extending at least three thousand meters deep...

Add in the vast power of the Hexagram Formation, and this corridor space will truly become a barren wasteland. The entire ground will become one seamless sheet of mage’s reinforced concrete. Even a Godfire Mage couldn’t destroy a single Steel Fortress; to do so, they’d have to obliterate the whole corridor in one blow.

That’s thousands of times harder than just wiping out a chunk of land spanning several thousand kilometers—only near-divine power could possibly pull it off...

It all started as an offhand comment Leon made while chatting with Agalon and Alonzo. Those two took the idea and ran with it—pushing it to the absolute extreme.

Still, right now, this really is the best solution. Leon couldn’t think of a safer way. Looking back, he was certain every Steel Fortress behind them was operating on the same principle. At the rear, the transformation was probably complete—the Corridor to the Leviathan Realm was already sealed. Even if they failed now, the undead couldn’t break through to Leviathan.

Worst case, things just stay as they are...

Ten more minutes passed, and Leon sensed the Steel Fortresses here, now part of the Hexagram Formation, had been activated. The array’s power was beginning to show—chaotic mana fluctuations were forcibly suppressed, the atmosphere normalized, and the frontline battlefield felt isolated outside.

In twenty minutes, Northend’s reclaimed territory expanded by another five hundred kilometers. Once these areas were secured, there was no way they’d ever be lost again.

A flawless masterpiece—Leon couldn’t even find fault with the efficiency. Now all that was left was to keep devouring the undead bit by bit, driving them out of the Corridor. Once that was done, the Hexagram Formation would be complete. Piece by piece, it would be activated to block the undead horde, and finally, the Six High Alchemists would fully activate the array together. That would settle everything, once and for all.

Leon floated alongside Dean Gandalf, three thousand meters above, watching the fierce battle unfold on the front lines—Mana Crystal Cannons, massive area spells cast in unison, Arcane Battleships...

All that firepower concentrated together, in just half an hour, crushed the undead across hundreds of kilometers—obliterating nearly every foe in range and halting the spread of the undead sea.

As the suppression advanced, the transport teams hauling Steel Fortresses were already waiting in the rear, moving forward to reinforce the push.

After the strongest firepower swept through, the rear was filled with slightly weaker mages, swordsmen, and Alchemical Golems, finishing off any undead stragglers—making sure nothing went wrong when the next Steel Fortress was deployed.

By the time the relentless firepower at the front began to wane and the undead started pushing back, the rear Steel Fortresses were already in place.

Activating partial arrays gave them a measure of suppressive force. With the fortresses as anchors, the frontline squads could easily repel the undead counterattack.

Slowly harvesting the undead, whittling down the undead sea—once the numbers up front stopped being overwhelming and the rear mages recovered, they’d gather firepower again and crush the enemy in another wave...

It was a cycle—if it didn’t work, they’d just repeat. Inch by inch, they pushed forward. It was the best method for now; no need for super-tier heroes. Anyone below Sky Rank Level 5 could handle it.

Only occasionally did an Undead Lord above level forty-five show up on the front lines. If one did, it meant their undead troops were nearly wiped out.

That’s the thing about undead—they’re stubborn. From start to finish, ninety-five percent of the time, it’s just their cannon fodder clashing endlessly. The Undead Lords almost never appear, except at the very end of the war, when two of them finally show up.

If there’s no deep grudge, war is just a way to gather Soul Fire. Maybe after it’s over, two powerful undead will emerge from the ranks.

But if there’s real hatred—life or death—then it’s simple: the two Undead Lords fight, only one survives. The winner devours the loser’s Soul Fire, and no matter how badly wounded, once they’ve consumed it, all injuries heal and their rank even goes up a notch.

This chapter isn’t over yet ^.^, please click next page to continue reading!

Right now, fighting against the Northend Allied Forces, the undead are still using this pattern. That’s why Northend has the upper hand.

Dean Gandalf gazed at the distant battlefront—a thousand kilometers of chaotic aurora, where spellfire kept flaring, weaving a river of magical light.

"Merlin, I’ve got a bad feeling about this. Maybe the undead have something up their sleeve. Ever since we came back, everything’s gone far too smoothly—almost unbelievably so.

The Undead Lords seem to have lost their minds—still fighting among themselves, and it’s getting worse. What’s strange is, now they’re fighting over territory outside the Blighted Domain, not inside.

Word is, a level forty-seven Undead Lord was killed in the infighting..."

Gandalf looked worried. This was anything but normal. If the undead ever worked together, if every Undead Lord charged at the Northend Allied Forces, it’d be nearly impossible to hold them back. This piecemeal strategy would get a lot harder—at least ten times harder.

Now, after three or four pushes, they could advance a hundred kilometers or more each time. In a month, that’s a thousand kilometers—territory fully secured and Steel Fortresses deployed.

The original estimate was a thousand kilometers in three months—already considered a best-case scenario. But reality was several times better than that, which felt... off.

Leon just shook his head, not taking it too seriously. He didn’t even need Gandalf to finish—the answer was obvious: Gimble was behind it.

Gimble’s hatred for the Mourning Vulture could drive him to do anything. Ever since Leon helped him unleash fire and personally burn a Mourning Vulture to death, Gimble treated Leon’s every word as gospel.

Leon brought Gimble in to stir up trouble, to provoke infighting among the undead. Undead Lords aren’t the type to unite—they’re all out for themselves, nakedly chasing their own interests. If just one Undead Lord starts a war, it spreads like wildfire.

Leon hadn’t wanted Gimble—the simple-minded gnome ghoul—to charge the front and get killed by the Northend Allied Forces. After all, Gimble had helped him a lot. Their sides might be enemies, but it wasn’t like they had to wipe out each other completely...

Once the Corridor was sealed, nobody would have to bother with each other anymore—there’d be no contact at all.

Leon convinced Gimble to withdraw from the Blighted Domain struggle. No matter how things developed, the war with Northend wouldn’t overlap. Unexpectedly, Gimble helped even more—he turned the undead rear into a complete mess, making their civil war fiercer than anything in the Blighted Domain.

That’s exactly why Northend’s strategy worked so fast and so well.

Leon hadn’t planned to tell anyone about Gimble, but seeing Gandalf so worried—almost ready to chase the truth into the Undead Plane—he gave him the short version.

He used the Chapter of the Fallen to disguise himself as undead and tricked a Ghoul Lord into starting a feud behind enemy lines...

Leon didn’t spell out the details, but Gandalf understood, smiling and shaking his head without saying a word.

After a few days wandering the Corridor, Leon realized there was nothing that needed his direct intervention. Everything was running smoothly—he just needed to prep for the Hexagram Formation’s activation, and that was no problem at all.

For this gigantic Hexagram Formation, the activation itself was the easiest part—just have the Six High Alchemists use their power of Creation to trigger it.

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