Those who reincarnate must die.

Zhang Lang was willing to retrieve the Organic Core and the Styx Blackwater not just for the side quest to resurrect the Holy Giant. For him now, a few thousand points of quest reward held little appeal.

What he truly cares about is the survival of this world.

Perhaps it was the fate of his homeland that instilled in him a certain extra sympathy for civilizations in the face of apocalypse. He longed to do something for this place. As a reincarnator, his time in this world was ultimately limited; no matter how many monsters he killed, he couldn't change its fate. But the Holy Giant was different. Not only was it powerful enough to protect the world, but it also possessed the ability to seal the gates to other dimensions, which could fundamentally solve the problems here.

For this world, the Holy Giant is more useful than a berserker like Zhang Lang.

"It's great that you're willing to help!" Diana's face lit up with joy. "It's the time when the interdimensional gate is opening, but based on past experience, the location of the interdimensional gate is never fixed. This time it has just opened, so I need to find out the exact location. Give me a few days, and I will give you the exact location."

"Then it will be too late." Zhang Lang waved his hand: "By the time you finish your investigation, the heroes of other races will have returned from the other world. If they attack Griffin City while I'm away..."

"Don't worry about that." Diana raised her beautiful head: "There's a reason why Griffin City has been able to stand for so many years in the apocalypse."

As she spoke, she pointed to the model of Griffin City: "Actually, this isn't the original site of Griffin City. It's a war fortress that I built in the shortest possible time after the interdimensional invasion, using all available resources. Strictly speaking, it should be called the New Griffin City. The old Griffin City, which truly belonged to the Griffin family and stood for hundreds of years, was destroyed long ago when the demons launched their counterattack against the human world. The ruins where I sent Jesta to retrieve the Eye of the Mind are the original Griffin City."

Diana waved her hand, and as magic flowed, the model of New Griffin City transformed. The castle in the center slowly cracked open amidst the operation of machinery and gears, revealing the underground structure. Of course, this time, the real castle did not crack open along with it.

As the castle transformed, a burst of light shone from underground. Deep beneath the castle, streaks of blue light twisted and crisscrossed, resembling a vast net. Within this net, a blue light could be seen, slowly pulsating like a heart.

"This is a magical energy ley line," Diana said with a smile. "In this magical world, magical energy ley lines are natural magical energy; you can think of them as magical mines. This particular magical energy ley line was discovered by chance by the Griffin family more than a decade ago, and its purity and reserves are unprecedented. The head of the family at the time, my father, knew the value of this ley line, so he kept quiet and secretly developed it, building many underground facilities. However, before large-scale mining could begin, they encountered an invasion from another world."

"At that time, humanity was still resisting, but the Griffin family had already foreseen the tragic future. They poured all their resources into building New Griffin City, under my leadership, on the foundation of underground facilities. This city uses magical ley lines as its energy source to maintain the magical shield that covers the entire city."

"This shield is a secret technique of the Sanctuary, further improved by the technology I brought from the altar. It is indestructible and inexhaustible. It can be said that as long as the magical ley lines still have energy, the magical shield will not be breached. And the proven reserves of the magical ley lines are..." At this point, Diana smiled confidently, "Even if we are subjected to continuous nuclear attacks, I am confident that I can easily hold out until the end of this mission."

"It's always best to be careful." Zhang Lang was still a little worried. "I'll find the location myself, and try to get there and back quickly. Do you have any space-related equipment here?"

For Zhang Lang, finding the entrance to the other world wasn't difficult; the challenge was bringing the items back. The organic core at least sounded like a solid, but how was he going to deal with the Styx Black Water? As for the ammunition pouches, their capacity was extremely limited, and he wasn't confident he could pack back many.

"I was prepared for this." Diana said, taking out a ring: "This is a top-tier spatial ring with a volume of one thousand cubic meters. Moreover, the things placed inside will not affect each other. It's enough to hold the Styx Black Water and the organic core."

"Um..." Zhang Lang looked at the ring, not daring to take it with his hand: "Is this equipment native to this world? Does it need to be powered by magic?"

"That's right." Diana said matter-of-factly, "But don't worry, I've modified it. It can be activated by any amount of energy poured into it."

Mine probably won't work... Zhang Lang sighed inwardly, shook his head and said, "Do you have any storage equipment for the altar? Trade it to me first. Don't worry, I'll return it to you when I'm done using it."

"I do have an altar, but it doesn't have that much space, I'm afraid..." Diana shook her head.

"I have a plan!" Le Xinyi suddenly stepped forward, took Diana's storage ring, and smiled at Zhang Lang: "Why don't I go with you?"

Zhang Lang frowned slightly: "You can't keep up with my speed... even if I carry you..."

He didn't say the second half of his sentence: Even if I take you with me, you'll be torn in two if I accelerate.

"Don't worry, I have a way!" Le Xinyi smiled, her eyes narrowing into slits.

…………

After making all the necessary preparations, Zhang Lang left Griffin City.

The area surrounding Griffin City has been occupied by alien forces. The four other realms each dominate their own territory: the demon territory from the twelve altars is in the west, the barbaric territory is in the east, and the underworld and the abyss are in the south and north, respectively.

Once outside the protective shield of Griffin City, Zhang Lang took to the air, reaching a height of several thousand meters, and looked down at the earth.

Since arriving in the human world, he had been somewhat restrained, fearing he might infringe upon the last remaining humans in this magical world. Now, having made contact with Griffin City, he felt more at ease and could finally act freely!

Zhang Lang took a deep breath, then his whole body trembled as he released his tension!

An invisible force spread out, instantly enveloping the entire continent and taking control of all the information.

At the same time, outside the area of ​​Griffin City, all the magical beings in the world felt an unprecedented sense of suffocation.

For them, sensing magic and elements is an innate ability, as natural as breathing. Now, suddenly, the magic of the entire world seems to have been cut off, causing them to feel a deep-seated fear, and for a moment the whole world fell into restlessness and unease.

Fortunately, this unease did not last long; the feeling of suffocation disappeared after only a few dozen seconds.

As for Zhang Lang, he had already located the portal and, with a Void Step Moon technique, flew northward...