In the Awareness, Merlin's Four-Elemental Wizard Heart was like a giant overlord, suspended in the middle. Only two Wizard Hearts were left.

These two Wizard Hearts was the most difficult to fuse as well as the most unexposed, compared to the other four which had previously been components of the Four-Elemental Spell Fusion. For Merlin to fuse these two types of Wizard Hearts, he would have to run simulations for a very long time.

"Phew…"

Merlin exhaled deeply. A thought flashed through his mind. "With what I've achieved so far, I wonder, compared to the Seven-Elemental Wizard Nelar, who would be stronger?"

Merlin had a very deep impression of Nelar. Throughout the history of Spell Casters, only one Seven-Elemental Spell Caster had existed. Moreover, Nelar had thirty perfect-grade spells, only six less than Merlin.

Coupled with the fact that Nelar was a Seven-Elemental Wizard, Merlin really wondered which prodigy would be more powerful. He had inquired around about Nelar but it seemed like no one had ever heard of him. It was as if he had disappeared into thin air. The only proof of Nelar's brilliance was his name on the spells ranking in Arcane City.

"Perhaps, Nelar didn't even become a Great Wizard. Perhaps, he failed to fuse his Spell Models and died as a result."

Merlin was very eager to meet this Seven-Elemental Spell Caster but none of the numerous Great Legends know about Nelar's whereabouts. In fact, some of them had not even heard of Nelar's name. So, there was only one possibility, which was that Nelar died prior to becoming a Great Wizard.

Since Merlin was currently fusing Spell Models, he was deeply aware of the challenge posed by fusing Spell Models. Just a single wrong step would render all previous efforts null, and it was impossible to recover!

Merlin did not continue to simulate the fusion but spent a lot of time to familiarize himself with the Four-Elemental Wizard Heart. This was because his progress had been too fast, so he would need time to familiarize himself with the Wizard Heart in order to wield its powers.

Time ticked by, and after an unknown period of time, Merlin sensed his ring vibrating gently. Surprisingly, it was Legend Zado's Maxim avatar.

"Merlin, the Rock Tribe is moving again. Hurry back to Setoh Castle."

Merlin's heart skipped a beat. The Rock Tribe was finally on the move again. This time, it would likely be the turning point of the civilization war. The two sides might engage in a final battle.

"Merlin, be careful. I'm still waiting for you to perfect the Mind Power system, so you cannot die!"

As soon as Merlin stood up, Titus' voice warned him softly from the Illusory World.

Merlin smiled. If he died, Titus probably would not have any hope of resurrection. So, he nodded and said, "Don't worry, I won't die so easily!"

After fusing the Four-Elemental Wizard Heart, Merlin was emboldened. Especially, hidden in his ring was Arcane Wizard Setoh's earth avatar. This was only known to Merlin and Wizard Setoh, and was Merlin's biggest life preserver.

"Swish."

Merlin quickly flew out of the Alabaster Dimension, and headed toward Setoh Castle in the Void Zone. Currently, Setoh Castle was packed to the brim with Great Legends.

During this time, numerous Great Legends had arrived continuously from Setoh Arcane City to replace the Legendary Wizards who were lost in the war. The current number of Great Legends exceeded that of before the civilization war started, which opened Merlin's eyes to the true strength of the Spell Caster civilization's foundation. If just Setoh Arcane City alone possessed such a strong foundation, then he could not imagine how staggering the entire Spell Caster civilization foundation would be combined.

It was first and foremost important to note that Setoh Arcane City was the weakest force among the three Arcane Cities.

In the main foyer of the castle, Arcane Wizard Setoh sat perched at the very top, flanked by the four Great Lords by his sides. Below them were countless Honored Legends and Legendary Wizards.

The entire foyer was nonetheless silent as they affixed their gazes upon Arcane Wizard Setoh.

"Everyone, I believe you've received the news. The Rock Tribe is finally moving and heading toward us. This is a civilization war. None can live while the other survives. Fortunately for us, we're occupying the upper hand. Based on the Spell Casters' three thousand years' worth of foundation, has there been a civilization war that we didn't win? A while ago, the Progenitor's Body stumped all our efforts but we have Wizard Merlin. He can defeat the Progenitor's Body and is the key for us to win this war!"

Many Legendary Wizards looked around curiously but they soon spotted Merlin who was hiding in a corner.

"Merlin, come up."

Wizard Setoh smiled at Merlin.

Merlin hesitated but eventually went to the front, and faced Wizard Setoh.

Wizard Setoh continued. "Wizard Merlin is the key to this war. He's a powerful Mind Power Master. I'll assign Wizard Lach to follow Merlin, and specifically work with him to confront the Rock Tribe's Progenitor's Body! If Wizard Merlin is in danger, every Spell Caster nearby must rescue him at all cost. All of you are Great Legends, so I'm sure I don't need to explain to you on Wizard Merlin's importance!

Once he had finished speaking, one of the Great Legends stepped forward, and nodded slightly at Merlin. He was Wizard Lach, a famous Great Legend whose existence was second only to the Lords.

"Merlin, don't worry. The four Great Lords will be paying attention to you. However, your Mind Power cannot sustain for a long time whereas the civilization war will go on for a long time. So, you don't have to exert too much effort. Find an opening and strike to kill. As long as you can defeat a Progenitor's Body with every strike, you'll effectively weaken the Rock Tribe's strength!"

The Blackfire Lord whispered to Merlin.

Merlin nodded. Indeed, he could not sustain the Illusory World for a long time. Nevertheless, moving around stealthily and launching "sneak attacks" was a good strategy. Even if the Rock Tribe had some means, they would not be able to use it. Hence, it would indirectly ensure Merlin's safety.

"Alright, let's go to the front line!"

Following a wave of Arcane Wizard Setoh's hand, rumbles of Spell Casters left the castle and flew toward the front line.

Similar to the Spell Casters, the Rock Tribe was also advancing boldly toward the front line, displaying a formidable sight. These Rock Creatures had already formed the Progenitor's Body ahead of time, and every single Progenitor's Body was supremely powerful.

In the Rock Tribe camp, Progenitor Hanra was observing the Spell Caster camp.

"I don't see Merlin? Hehe, I'm sure Setoh had already hidden him away. Never mind, I've already expected that Setoh would have some tricks up his sleeve. Invisible Rock, don't let it concern you. Don't emit any aura. You must hide among the ordinary Rock Creatures and form the Progenitor's Body with them. Once you see an opening, you must kill Merlin!"

A cold glint flashed across Invisible Rock's eyes. He nodded, and flew off together with some other Rock Creatures toward the Runic Magic Circle.

The civilization war was resuming!

"Four Great Lords, go now. Since they've come all the way here, there's no need for them to leave!"

Wizard Setoh waved his hand. Instantly, under the leadership of the four Great Lords, numerous Great Legends stepped into the Runic Magic Circle.

Immediately, a massive confrontation between two great civilizations ensued in the Runic Magic Circle.

All the Rock Tribe's Progenitor's Body went berserk, and suppressed the Spell Caster camp. Despite being in the Runic Magic Circle, multiple Progenitor's Bodies were able to release unfathomable strength.

In just a few short hours, the Spell Caster camp had lost three Great Legends. This was a rate that had never been witnessed before.

"Hmph, it seems like the Rock Tribe is truly giving their all. Merlin, be prepared to strike."

Wizard Setoh watched the battle from the front line. The strength displayed by the Rock Tribe was indeed powerful, relegating the Spell Caster camp into a passive stance. Wizard Setoh did not want to lose too many Great Legends, so Merlin prepared to strike.

Merlin had remained hidden in a distance. Beside him, there was only Wizard Lach.

"Wizard Lach, get ready, we'll kill with one strike!"

Merlin's gaze shifted toward a gigantic Progenitor's Body in the battlefield. Even faced against two Honored Legends, it was deftly able to put up a strong resistance.

Merlin also sensed that this Progenitor's Body was comprised of only some very ordinary Rock Creatures. So, with Wizard Lach beside him, as long as the Illusory World was triggered, they would certainly be able to defeat this Progenitor's Body.

"Attack!"

Merlin growled. Instantly, both their speeds kicked up a notch. Lach, in particular, wrapped Merlin in a Maxim, and sped into the battlefield at top speed.

"Illusory World!"

Merlin did not hesitate and fiercely mobilized the Illusory World. The huge Illusory World directly enveloped this gigantic Progenitor's Body.

The Progenitor's Body trembled a little but did not cease. Nevertheless, many could distinctly feel that this Progenitor's Body was not as flexible as before. Its movement appeared to be very stiff.

This was because some of the Rock Creatures in the Progenitor's Body had fallen into an illusion.

"Wizard Lach, your turn!"

Merlin's tone was cold and merciless. He was trying hard to sustain the Illusory World. Every single second to sustain it required large amounts of Mind Power.

Hence, he would not be able to hold on for a long time. Wizard Lach must act quickly.

"Kill!"

Wizard Lach did not hesitate. He released his five Maxims consecutively, including one ultimate Maxim. It was not surprising that Wizard Lach was an existence just below the Great Lords.

"Boom."

The powerful Maxims were like a huge dragon. Roaring loudly, it slammed onto the Progenitor's Body. The rock-solid Progenitor's Body that appeared infallible began to tremble violently upon this collision.

"Crack."

Finally, a faint crack appeared on the Progenitor's Body. It continued to grow, one ring after another, like a spider web.

"Swoosh."

Countless gazes gathered on Merlin and Lach. Merlin even felt a strong threat coming out of nowhere.

"Let's go!"

Merlin did not dither. Together with Lach, he immediately flew out of the battlefield and did not stop.

"Rumble."

Finally, that Progenitor's Body collapsed. With that, a few Rock Creatures died on the spot. Whereas the remaining Rock Creatures, due to the loss of the Progenitor's Body, were also killed by the Spell Casters cavalry.

"Wizard Merlin, what happened to you earlier? No one can pose a threat to you!"

Wizard Lach declared confidently but Merlin remained frowning.