The mark on Merlin's chest became darker and darker, like a black mole, but it exuded a trace of coolness, which was due to the continuous convergence of the dark elements.

The Dark Mist Spell Model in Merlin's Sea of Knowledge, as well as the Spell Model in the Dark Light Domain, have greatly increased the speed of absorbing mana, all because Merlin has cultivated the Heart of Darkness.

Heart of Darkness is naturally very close to the dark element, and releasing spells will also greatly increase the power of dark spells, especially Merlin's is the third type of Heart of Darkness.

"Try it, Dark Mist!"

Merlin instantly released a dark mist, and suddenly, a fog enveloped the entire ashram, and it seemed to be spreading outward.

Originally, this ashram was also very spacious, but Merlin's dark mist was far more powerful than before cultivating the Heart of Darkness, and the dark mist could cover a radius of tens of meters, less than a hundred meters.

But now, when Merlin released the Dark Mist, he could clearly feel that the mark of the Heart of Darkness on his chest was rapidly scorching, and a trace of strange power directly acted on the spell model of the Dark Mist, and suddenly, the Dark Mist seemed to use an amplification type spell casting tool, and its power skyrocketed.

Even the safest estimates should have nearly doubled the power of the Dark Mist.

Merlin was also shocked in his heart, the power of the Dark Mist was doubled, it would be completely comparable to a first-level spell, and if the enhanced version of the Dark Mist was released, the power would probably be even more terrifying.

Thinking of this, Merlin couldn't wait to release the first-level spell Dark Light Domain. That's the point. If the power of the Darklight Domain is amplified. If it is so terrifying, then Merlin's strength can be regarded as a significant increase.

With a flick of his hand, Merlin dispels the Dark Mist, then unleashes the Dark Light Domain, which, unlike the Dark Mist, distorts light, completely darkens an area, and has a more powerful hallucinogenic effect.

A normal Darklight Realm spell. Its hallucinogenic effect can make all second-level peak casters fall into the illusion, and if it is an enhanced version of the Darklight Domain spell, it can easily make all third-level casters fall into the illusion.

Now Merlin is going to give it a try, and with the cultivation of the third type of Dark Heart, how far can he increase the spells of the Dark Light Domain?

As the light continued to distort, Merlin could clearly feel that the power of the Dark Light Domain spell had been greatly improved, even an ordinary Dark Light Domain spell, after the increase of the Dark Heart, could easily make the third-level casters fall into the illusion.

"Darklight Domain!"

Merlin unleashed the Darklight Domain once again. This time, though, he's unleashing an enhanced version of the Darklight Domain. And the mark of the Heart of Darkness on Merlin's chest still exuded bursts of scorching aura.

This shows that the enhanced version of the Heart of Darkness to the Dark Light Domain still has an amplification effect, in fact, once the Heart of Darkness is cultivated, it can increase all the dark spells, and as the third type of Dark Heart, even in the most glorious era of the Abyss Fortress, there are only a handful of spellcasters who can cultivate the third type of Dark Heart.

Moreover, the real effect of the Heart of Darkness is that after the caster becomes a fourth-level caster, the fourth-level spells of the dark system will be fused, and the final power of the spell will be increased by five to ten times.

At that time, Merlin's third dark heart will be truly terrifying!

Now, relying on the amplification of the Heart of Darkness alone, it can double the power of the spell, which is already the strength of the third type of Dark Heart, and if it is the first or second type of Heart of Darkness, it can only increase the power of the dark spell by a few percent at most.

"The enhanced version of the doubled Dark Light Domain, so powerful! Even a third-level peak spellcaster, or even an ordinary fourth-level spellcaster, is afraid that they will fall into the illusion. ”

Merlin sighed heartily, if the enhanced version of the Dark Light Domain is released, relying on the amplification of the Heart of Darkness, the power of the spell will be terrifying, and the caster of the third-level spiritual power will not be able to resist it at all.

Even the average level 4 spellcaster would fall into the illusion, but Merlin had never fought against a level 4 spellcaster, and it was not clear how strong the level 4 spellcaster was.

Moreover, even if they are both fourth-level spellcasters, there are also strong and weak points, if the strongest of those fourth-level spellcasters has extremely strong spiritual power, Merlin's Dark Light Domain may not have much effect.

But even so, Merlin has a heart of darkness, and the effect of increasing his strength is also very significant, even able to compete with a fourth-level spellcaster.

"Matrix, how long have I been cultivating?"

Merlin asked the Matrix.

"You've been cultivating for nine hours!"

Merlin pondered for a while, and in nine hours, he was able to cultivate the third type of dark heart, which was quite fast, and this was also because Merlin's current belief was too strong, and no illusion could confuse him.

"It's time to get out of the town. ”

Merlin stood up and left the ashram.

Outside the quiet room, Master Leo, Master Hobbis and the others, after seeing Merlin leave the quiet room, they all opened their eyes violently, and their huge spiritual power continued to look at Merlin.

"Merlin, can the Heart of Darkness be cultivated?"

Master Leo asked hurriedly, seemingly slightly anxious in his heart.

Mage Hobbis and the others glanced at each other, they had all heard of Master Leo, but in their impressions, Master Leo was a strange-tempered and very arrogant spellcaster, how could he care so much about a student?

Even if Merlin is a sixth-line genius spellcaster, he doesn't need such a precious thing as Master Leo's cultivation method of dark eyes to help Merlin.

Merlin looked at Master Leo's anxious appearance, and while secretly grateful in his heart, he also had a trace of doubt, Master Leo helped him go to the Abyss Fortress, and paid a huge price to make him cultivate the Heart of Darkness.

This kind of help seems to go beyond the relationship between "mentor" and "student" in a certain sense.

However, Merlin held back the doubts in his heart and replied with a smile, "Mentor Leo, everything is going well. I've cultivated the Heart of Darkness!"

Merlin became the Heart of Darkness. Master Hobbis and the others weren't surprised. When Merlin came out of the dark maze, they already knew that Merlin's cultivation of the heart of darkness was almost a matter of course, and basically the caster who could break the seventh day illusion in the dark maze could cultivate the heart of darkness, and it was also the third type of heart of darkness!

"Good!"

Master Leo only said one word, and then a look of relief appeared on his face. He turned around, took out a delicately bound thread-bound book from the ring, and said in a calm tone: "Master Hobbis, this is my original method of cultivating the Dark Eye, but it's only half, you can take a look first." ”

After that, Master Leo handed the cultivation method of the Dark Eye to Master Hobbis and the others.

Mage Hobbis, Mage Gesello, and Mage Balin, all with a fiery look in their eyes, hurriedly gathered together. I opened the thread-bound book and looked at it.

It's only a few pages, though. But Master Hobbis and the others watched it for more than half an hour, and even Merlin was a little curious, this is the cultivation method of the Dark Eye.

Master Leo seemed very calm, not in a hurry, but quietly waiting for the results after Master Hobbis and the others finished reading.

After more than half an hour, Master Hobbis raised his head and exchanged glances with Gesello and Master Balin, and there was a hint of shock in the eyes of all three.

"Awesome, awesome, Master Leo, this cultivation method of the Eye of Darkness, even the founder of our Abyss Citadel, Archmage Damani, can't create a cultivation method on his own, Master Leo can really create a cultivation method on his own, and it seems that there is really a possibility of success, just for this, I Hobis admires it very much!"

"Yes, although it's only half of it, I can already see some of the situation clearly, Master Leo's Dark Eye cultivation method is indeed unique, it's very magical!"

The three seventh-level spellcasters of the Hobbis mage were full of praise for Merlin after only seeing half of the cultivation method of the Eye of Darkness, no wonder Mage Leo was so confident that he directly gave half of the cultivation method first.

"Master Leo, when will the next half of the cultivation method be given to us?"

Master Hobbis's eyes were full of eagerness, what Master Leo did before was no longer a problem in front of the cultivation method of the Dark Eye.

"The second half of the cultivation method, naturally, we will have to wait until Merlin has selected the method and then give it to you when we leave the Abyss Fortress. ”

Master Leo had already thought deeply about when to hand over all of the Dark Eye cultivation methods to the Abyssal Citadel.

Mage Hobbis nodded, and then said to Merlin in a somewhat hurried tone: "Mage Merlin, we will take you into the library immediately, the dark spells you want to choose, from level 2 to level 6 spells, you can choose at will, but you can only choose one type of spell for each level!"

After Merlin nodded, he followed behind Master Hobbis and the others, and walked towards the library, in front of the half of Merlin's Dark Eye cultivation method, Master Hobbis and the others were not in a hurry, but after seeing the cultivation method of this half of the Dark Eye given by Master Leo, they had more expectations in their hearts, and they wished that Merlin would be able to select the spell immediately, and they would be able to get the complete cultivation method of the Dark Eye.

This Eye of Darkness requires a sixth-level dark spell to cultivate, and seventh-level spellcasters such as Master Hobbis have built many dark spells, once they get the complete cultivation method of the Eye of Darkness, then they can also cultivate the Eye of Darkness, so they are naturally very eager for the cultivation method of Master Leo's Dark Eye.

Soon, after walking through mysterious passages, Merlin and the others came to a place where the dark element was particularly strong, where two huge stone doors stood towering, and on the wall next to the stone gate, there were many strange murals painted, which made people feel a little strange.

"Alright, this is the library!"

Mage Hobbis turned around, pointed to the two huge stone doors, and said with a smile to Merlin and Mage Leo.

[I wanted to break out, but the day after tomorrow to attend a relative's wedding, there are a lot of things, after the 19th, the old month strives to break out, many dare not guarantee, three changes in a row, it should still be able to do......!