As the exchange progressed, the small crystals in Lin Wu's hands were soon replaced with a large number of various magic cores and magic crystals, but there were still giant dragons on Dragon Island who came to exchange magic cores and magic crystals, and Lin Wu naturally did not want to let go of this great opportunity.

Immediately, Lin Wu found a gap and used the decomposition machine to decompose all the magic cores and magic crystals into various small crystal blocks, and then, Lin Wu was exchanging these small crystal blocks for the magic cores and magic crystals in the hands of the dragon clan.

After a few days of exchanging, the number of small crystals of various colors on Lin Wu's body had reached an extremely large amount, and the largest number of colorless small crystals had reached billions.

In addition, because many of the demon cores taken by some giant dragons were still Sanctuary-level magic cores, Lin Wu also obtained numerous law fragments while obtaining small crystal blocks.

It can be said that this trip to Dragon Island, Lin Wu can be described as a bumper harvest.

Of course, Alice, Meng Meng and Lulu 3 people also gained a lot, among them, Alice found the first frost dragon from a hidden location on Dragon Island under the guidance of Skasa, something left by the cold winter, and Lulu relied on the dark elemental elf's keen sense of dark power to find a dark dragon's dragon crystal, the dark dragon was once a member of the Dragon Island and was powerful, but, I don't know why the dark dragon finally betrayed the Dragon Island and entered the demon world, As a result, the dragons no longer recognize the dark dragon as a member of the dragons.

When Charles learned that Alice and Lulu had found something, Rao is Charles couldn't help but feel a pain in his flesh, these are all rare treasures on Dragon Island, Charles didn't expect Alice and Lulu to find out these things, however, he promised to give someone a treasure, and Charles couldn't break his promise, so Charles also reluctantly gave them what Alice and Lulu found.

However, when Charles knew the 'thing' that Meng Meng had gotten, he was not calm for a moment, although the things that Alice and Lulu wanted were precious, but they were still items, but Meng Meng was a living dragon.

Meng Meng didn't know this in Dragon Island, and had a very close relationship with a young fire dragon, and in the end, the baby fire dragon agreed to sign a contract with Meng Meng.

"This won't work!!" Charles vetoed Mengmeng's request to make a contract with the little fire dragon.

"Why not, didn't Grand Elder Charles promise to give it to us as long as we like it, and besides, both Meng Meng and Little Fire Dragon are voluntary, why should Great Elder Charles stop it." Seeing Charles' refusal, Alice slammed her waist and glared at Charles, not at all afraid of the strength of the peak of Charles' Sanctuary.

In the face of Alice's questioning, Charles glanced at Meng Meng lightly and said, "She is not qualified enough!" "Mengmeng's current strength is no more than that of the Great Magister, and this kind of strength is naturally like an ant in front of a top powerhouse like Charles.

"Not qualified!!" Hearing Charles's words, Alice couldn't help but glared at Charles angrily, and said, "You said that Meng Meng is not qualified enough, Meng Meng is the contractor of Casias's predecessors, you actually said that she is not qualified enough, hum, I will definitely explain this matter to Cassias seniors, just say that your dragon clan looks down on the contractors of Casias's predecessors, that is, you look down on Cassias's predecessors." ”

"What....what!!"

Hearing Alice's words, Charles couldn't help but be stunned, Cassias, God, how can this little girl have anything to do with a strong person like Cassias, however, I heard that Cassias did sign a contract with humans, and when he thought of Cassias, a battle maniac who even the Dragon Emperor had a headache, Charles's cold sweat instantly fell.

Although the dragon clan is strong and arrogant, they don't dare to look down on a peak powerhouse like Casias, thinking of this, Charles looked at Meng Meng with a 'kind' face, and said: "This Miss Meng Meng, I don't know ......"..., Charles's voice did not fall, Meng Meng took out the contract scroll with Cassias at the signal of Alice, and saw the contract scroll that Meng Meng took out, Charles's face became even more 'kind', "Hehe, Miss Meng Meng, it was all a misunderstanding just now, in fact, our dragon clan has a long history of signing a contract with humans, The legendary dragon knight and other powerful professions are all the product of the cooperation between humans and dragons.

"So, can I make a contract with the little fire dragon?" Meng Meng didn't listen to Charles's nonsense, pointed to the core, and said.

"But, yes, in fact, this little guy has no parents for a long time, and now, I believe he will be very happy to be with Miss Mengmeng." After confirming the contractor of the cute Cassias, Charles immediately nodded and agreed, and it was also an opportunity for the little fire dragon to sign a contract with the contractor of Casias.

With Charles's approval, the contract between Meng Meng and the little fire dragon was naturally very smooth, and in the process of the contract, Meng Meng learned that the little fire dragon did not have an official name, so Meng Meng gave the little fire dragon a name, called Fleet.

After staying on Dragon Island for a few more days, Lin Wu had obtained a sufficient number of small crystal blocks, and although by this time, there were still many dragons coming to exchange, but Lin Wu still decided to leave Dragon Island and prepare to enter the underworld.

Saying goodbye to Charles, Lin Wu took Alice and the three of them back to the Eastern Imperial City, this time to the underworld, Lin Wu also had to bring Bailey and the sky, as for Alice and Lulu, Lin Wu was not ready to take them, after all, Lin Wu had to face a demigod-level powerhouse, which was too dangerous for Alice and Lulu, who were only in the middle of the Holy Domain.

And Alice and Lulu also knew that their strength was insufficient, so they did not clamoring to go to the underworld with Lin Wu.

"Xiaolin, you have to be careful, you must come back safely!" Alice looked at Lin Wu with a reluctant face and said.

"Don't worry." Lin Wu gently stroked Alice's hair and said.

With that, Lin Wu summoned Bailey and the firmament, then turned around and left the residence, walking towards Norton's laboratory, and when Lin Wu returned to the Eastern Imperial City, Norton asked Lin Wu to go through the teleportation bird.

"Boy, go to the underworld to stay safe, and of course, help me collect some materials by the way." Norton handed a transparent crystal ball to Lin Wu and said.

"What is this?" Lin Wu looked at the crystal ball handed over by Norton, curious, and said.

"This is the Soul Eater Bead, which is specially used to collect the souls of undead creatures." Norton explained.

"What's the use of collecting the souls of undead creatures?" Norton's explanation not only did not solve Lin Wu's confusion, but made Lin Wu's heart even more confused.

"Of course, it's refining soul crystals." Norton looked smug and said, "Stinky boy, I don't know the soul crystal either, let me tell you, this soul crystal is a kind of soul crystal, a precious treasure that can be used to increase the power of the soul." ”

"Increase Soul Power!!" Hearing Norton's words, Lin Wu's eyes lit up, the growth of soul power is very slow, it will only increase a little when he breaks through the realm, and this soul crystal can actually directly increase his soul power, if he says it, it will definitely make everyone crazy.

Hearing the conversation between Lin Wu and Norton, Gu couldn't help but sigh, and said, "It's a soul crystal, this kind of soul crystal was very popular in ancient times, and it is a powerful alchemy technique that purifies the soul fire of undead creatures into soul crystals. However, at that time, in order to obtain a large number of soul crystals, some evil people began to slaughter civilians and extract their souls to refine soul crystals, and in the end, the exposure of the matter caused a huge backlash in the world, and the refining method of soul crystals also began to disappear at that time. ”

"And that matter?" Hearing this, Lin Wu was shocked, and immediately, Lin Wu confirmed to Norton what he learned from the ancient mouth, and this is really the case, the refining method of this soul crystal was found by Norton in Luke's notes, and Luke also specifically noted in the notes that refining soul crystals must not use the souls of living beings. ..., "Don't worry, the refining method of this soul crystal will definitely not be passed on. Norton, who knew the huge harm hidden by this soul crystal, also patted his chest and assured Lin Wu, saying.

For Norton, Lin Wu naturally believed that he would not do that kind of hurtful thing, and after accepting the Soul Devouring Bead, Lin Wu also said goodbye to Norton and left the Eastern Imperial City.

"The seal is lifted!!"

After leaving the Eastern Imperial City, Lin Wu immediately unlocked the ghost hand seal, and suddenly, the surging power of the ghost and god began to surge in Lin Wu's body.

"Ghost Walk!!"

Immediately after, Lin Wu began to gallop in the open space with the ghost shadow step, and soon, the power of the ghost and god in Lin Wu's body was operated to the extreme, and Lin Wu's figure began to constantly blur.

In the end, Lin Wu stepped out with a fierce kick, and in an instant, Lin Wu's figure suddenly disappeared into the wilderness.

……

The underworld.

It was a gray world, the sky was gray, the earth was gray, and in addition to gray, only the ubiquitous white bones were the second color outside of this gray world.

And in the gray earth, every minute, countless skeletons crawled out of the bone-covered ground, becoming a newborn lowest-level undead creature. And those newborn skeletons will instinctively devour the soul fire of other undead creatures to increase their own strength, until they reach a certain strength, those undead creatures will turn on their spiritual intelligence and become the strongest of the dominant side.

On this day, a faint phantom suddenly appeared in a group of newborn skeletons, and when they saw this phantom, those newborn skeletons instinctively began to flee, because they had a powerful undead creature such as ghosts in this world.

However, soon the skeletons stopped, because the faint phantom continued to solidify, and finally, it became a person with the breath of life.

Feeling the breath of the living beings, all of a sudden, the skeletons around them went crazy, and the breath of the living beings, in the dead and silent underworld, was like lights in the darkness, and those skeletons were like moths to the fire, rushing towards the person with the breath of the living beings.

#c