The origin of the Osakta is no longer known. But there is no doubt that it belongs to some powerful mage, or even a higher level of existence. Whether it is from the shape, layout, or even the collection inside, it can be known that this is a powerful mage tower, and the mage tower will inevitably have a defense system.

Saruman has been staying at Osacta for quite some time. However, he never fully mastered the defense system of this mage tower. So we can only wait for it to activate passively. However, despite this, the defensive ability displayed by this mage tower still made Lin Xuan look sideways.

In just a few breaths, Lin Xuan had already tried a variety of elemental attacks. It didn't cause the slightest damage to this shield. Lin Xuan couldn't help but be interested in this. Originally, he didn't have much idea about the magic of this world. But now it seems that there is still some merit.

Alchemy runes lit up in the void. They flew straight towards the main body of the Ozak Tower, and directly passed through the protective shield, seeping into the interior of the Osak Tower. It seems that the defense has some kind of judgment function, and once the attack amplitude exceeds a certain limit, the defense circle will be triggered. The alchemy runes didn't have the slightest attack power, so they weren't blocked.

Of course, it is likely that this defensive circle has already had some kind of vulnerability, after all, it has been too long. Otherwise, there should be a more complete mechanism. Alchemy runes shouldn't have penetrated so easily.

The alchemy runes seeped into the body of the tower and quickly spread to every corner. These alchemy runes formed a huge formation. Begin to analyze the essence of all the material components of this tower.

The entire tower was built using huge and large stone blocks. Although there is not the slightest trace of the interface. But under the in-depth analysis, the clues can still be seen. To be able to manipulate such a huge stone, even with Lin Xuan's strength, it was a little difficult.

The rock is an ordinary rock, but the entire interior of the boulder is filled with an inexplicable energy. It was somewhat similar to the divine power that Lin Xuan had been exposed to before. But there is still a certain difference in quality, which is a kind of power mixed with spiritual power, magic power, and life force. There is already a rudimentary form of fusion, but it is not mature enough.

The alchemy runes slowly changed under Lin Xuan's control, and the entire analysis began to transform from the material level to the energy level. In Lin Xuan's magical energy perspective, countless lines were secretly distributed in every corner of the stone tower. But they're all spreading in the same direction.

Along these lines, a core eventually appeared in Lin Xuan's perception. It was a burning orb, and he was constantly drawing energy from all directions. At the same time, they are constantly returned to various parts of the tower. The whole circuit is like the blood circulation system of the human body, which is huge and sophisticated.

"I see, the peculiar energy circuit constitutes an almost perpetual motion effect. But the whole process is energy-draining. The formation at the top has a certain function of automatically absorbing the free mana around it. But it's still a little bit, and this circle is only a little bit complete. But for some unknown reason, this last bit of error was not calculated. Therefore, the entire formation is actually in a weak state. ”

Saruman's counterattack pulled Lin Xuan's consciousness back to the battlefield. By now, the soldiers of Gondor had completely suppressed the Orcs of Saruman. The war has entered a one-sided form. Saruman also sensed something was wrong and wanted to slip away. It's a pity that there is a Lin Xuan in front of him.

"Wizard, I know what you're trying to do. I can leave this without medating, and it will all be over. I will not be in front of your eyes again. ”

"There's nothing you can't trade. But you don't have enough chips, so you have one more chance to change your chips. A thunderbolt spear loomed in Lin Xuan's hand. That astonishing aura made Saruman nervous. He felt like he couldn't take it. The surrounding protection has already begun to weaken, and it is estimated that it will not last long.

Saruman hesitated for a moment, but made up his mind.

"I'll tell you a secret about Thorin."

Thorin still values Saruman's allies very much. All the while, the orc legions bypassed Gondor and wanted to come to the aid of Isengard. Orcs are not a particularly powerful race, but they have an extremely strong advantage. Reproductive ability. Orcs are the most fertile of all species. They are not very civilized, but the orcs are omnivorous creatures. In times of famine, these guys eat grass roots and bark and do not starve to death. So this leads to an extremely large number of orcs.

Tens of thousands of orc legions rushed to Isengard's side in a hurry. Although it is undisguised, there are indeed not many forces in the entire Middle-earth that dare to confront it head-on. The orcs did not achieve the corresponding status because they were too inferior to be a group that could not be unified at all. Unless it was an iron-blooded device like Sauron, it would be impossible to bring them together.

At the foot of Masidras Peak, the Orc Legion is undergoing repairs. Just go around the mountain and you'll be in Isengard. There is about a day left on the road. It's just that they didn't expect that Isenger had already fallen. Didn't even survive a day.

Some rocks on the hillside were pulled apart, and some hill dwarves came out of their holes. After quietly observing the foot of the mountain, they returned to the cave. Moved out one by one iron cylinders. It was filled with a green liquid.

Orcs have a keen sense of hearing. They were aware of the orcs as soon as they first started moving. It's a pity that it was a little late by then.

Hundreds of tin buckets were pushed down the hillsides in all directions. Along the way, many barrels were broken, and the green liquid spilled all over the hillside. More barrels fell to the Orc legions at the bottom of the valley. Many orcs were smashed straight into pulp. But this is only the beginning of the disaster. With the fall of several rockets, purgatory descended at this moment.

Rolling waves of blue-green fire swept across the valley. Accompanied by a violent explosion, it spread out for thousands of meters in an instant. The miserable green flames, with a strong magical tinge. Countless orcs wailed briefly in the flames, and then died. This tragic scene made the dwarves on the hillside look stupid.

"Oh my God, we've opened the gates of hell." A dwarf in charge of archery said.

"Will hell be like this?"

"Perhaps."

The conversation was soon interrupted by a tragic image of the valley. Even as an opponent, the scene in front of him still makes people feel uncomfortable. But it's not a bad time. Some of the surviving orcs began to try to climb the hillside, and there were so many of them that nearly 10,000 survived even after the wildfire. The surviving commanders still had a glimmer of hope, as there were only a few hundred dwarves on the hillside. They still have an absolute numerical superiority.

But when the dwarves came out one after another with groups of elven archers, all the orcs were already in despair.