Hu Die was also a little distracted when she looked at the island that suddenly disappeared, and after a while, she took her gaze back, took out a bottle of elixir from the bracelet, and fed it to the merman.

"Do you want to tie it up?" Liu Xing said uneasily.

"I don't think it's necessary, it's not clear whether it's friend or foe, and if you tie it up, the situation will worsen." Hu Die said after a moment of low groaning.

Liu Xing nodded, not speaking. Hu Die called two strong male students to move the mermaids into a guest room and told them to take strict care.

The afternoon was smooth sailing, nothing strange happened, except for a few aggressive fish, everything went well, and the boat began to return with a full load as it began to tilt westward.

Liu Xing and his entourage stood on the bow of the boat, enjoying the beautiful scenery, the sea was fiery red, and the fiery clouds in the sky were connected, and there was an extreme beauty of the sea water and the sky.

"The beauty of nature is the beauty that really touches the heart! : Liu Xing said with emotion.

"What about me?" Hu Die said suddenly, the sunset was imprinted on her face, and she was a little flushed. I don't know if it's the blush or the brilliance of the afterglow.

"Uh......"

Liu Xing looked at Hu Die with some distraction, Hu Die was really beautiful, his facial features were perfect, his face was exquisite, and his skin was fair and smooth, this kind of beauty was even more amazing under such a beautiful scenery, causing him to swallow a mouthful of saliva.

"Huh!" Hu Die smiled easily and turned his head to look into the distance.

"I heard Chiyan say, tomorrow we are going to give a formal lecture, do you have any arrangements?" Liu Xing felt that he was a little out of shape, and immediately changed the topic.

"I don't care, anyway, I've listened to a lot of classes in the previous sect, so just follow the teachings. It's you! Hey! Hu Die suddenly said teasingly.

"I'm going to get ready!" Liu Xing's old face turned red, but he didn't expect to be even more embarrassed to change the topic, so he made an excuse and slipped away immediately.

"Elm head, I don't know what Sister Shanshan likes about you!" Hu Die muttered quietly, frowned and sighed, and continued to look at the sun that was slowly sinking to the bottom of the sea.

Liu Xing found a guest room where no one was there, sat down, and meditated.

He thought to himself that he should be going to teach elemental mutants, which corresponds to spells such as gold, wood, water, fire, earth, wind, thunder and lightning. It's just that he doesn't understand where the mutant's energy comes from. He hadn't used his divine sense to probe mutants before, and he thought it was rude.

"Now I have mastered fireball spells, palm thunder, air dancing and other spells, and the sky dance technique should be regarded as a wind spell!" Liu Xing said with self-questioning.

"I really don't have enough water for this half-ass!" Liu Xing said with a wry smile. Put down the jade slip and learn other spells is not an overnight thing, now it is better to call a mutant to ask about the situation.

Thinking of this, Liu Xing got up, came to the deck, and found Chiyan.

"Chi Yan, come with me, I have some questions for you."

"Oh, that's mysterious." Chi Yan asked a little puzzled, what other questions can't be said outside. However, he didn't have to refuse, and followed Liu Xing to a fairly clean guest room.

"Let's sit down first!" Liu Xing looked at Chi Yan, who was a little puzzled, and said.

"Okay, Liu Xing, if you have something to say, just say it, you know I'm impatient." Chi Yan said with a big grin, sitting on the stool.

"I want to see your body. Don't resist! After Liu Xing finished speaking, he released his divine sense, he wanted to understand the source of the mutant's energy, you must know that the mutant's attack is also very powerful, especially those elemental mutants, take Chiyan as an example, the flame he released is a few points more powerful than Liu Xing's fireball technique, and the control is more flexible and changeable.

"What! Liu Xing, I didn't expect you to be a pervert and have this hobby! Chi Yan immediately exploded, bounced up from the chair, and looked at Liu Xing vigilantly, if he wasn't more familiar with Liu Xing, he would probably have to do it.

"Don't get me wrong, I'm curious about the source of your elemental mutants' energy. I want to use my divine sense to check the situation in your body," Liu Xing hurriedly explained.

"That's it, what's so curious, my energy source is the energy crystallization of Xia Dantian!" Chi Yan said with relief.

"Oh? Is that so? Liu Xing quickly swept Chi Yan's lower dantian with his divine sense, and found that there was a fiery red crystal in the dantian, like an orange gem, and it also emitted a trace of fiery energy from time to time, nourishing Chi Yan's body and making his body more and more adaptable to the flames.

"The teachers of these colleges have already said that the energy source of the spiritual mutant is the energy crystallization at the center of the eyebrows of the upper dantian, the physical body mutant is the middle dantian, and the elemental system is the lower dantian." Chi Yan said in some surprise. He didn't know much about Liu Xing's past.

"I see, thank you." Liu Xing said with a smile on his face.

"Teacher Liu, you can't say that, you want to teach us spells." Chi Yan's face was more ugly than crying.

"Well, well, as much as possible, as much as possible! You also know that I am not a mutant, first of all, I need to understand you mutants, look at the flames you use! Liu Xing's old face flushed and said embarrassedly.

Chi Yan nodded helplessly, carefully held up his palm, a small flame appeared in his palm, Chi Yan moved his fingers, and the flames also floated up and down.

Liu Xing watched this process carefully with his divine sense, and found that the elemental mutants used spells, which were a little different from their cultivators, and the energy crystals at the dantian appeared in his palm directly in a flash, unlike the cultivators who also called the aura in the dantian, and then reached the palm of the hand through the meridians, and finally through cumbersome formulas and gestures to transform the aura into flames.

"You mutants are so good, blessed with heaven, darlings of heaven!" Liu Xing said with some jealousy.

"What? Darling? Chiyan was stunned all the way when he heard it.

"Yes, you can use the energy of the dantian to launch an attack in an instant, but we cultivators can't do it." Liu Xing said with envy.

"Oh, Liu Xing, what kind of elemental spells do you have, how do you restore the energy in your body?" Chi Yan also asked with interest.

"I'm going to be a fireball and *** for the time being. If you recover, you can meditate and absorb the aura of heaven and earth, what about you? Liu Xing was also a little curious about how the mutant recovered the energy in his body.

"I still envy us, mutants are generally stereotyped, I am a flame mutant, I can only be a flame mutant, and I can't learn the spells of other elemental systems, and energy recovery can only rely on eating food, and some people try to supplement it with other methods, but there are few successes, for example, I may be able to recover with flame-based gems, but I haven't seen those gems." Chi Yan said with some frustration.

"Oh!" Liu Xing nodded, it seems that each has its own merits, after all, the mutant is a new species, and it is not strange that there is no systematic advanced method, unlike the cultivator who has at least tens of thousands of years of inheritance.

"Liu Xing, do you have any inspiration?" Chi Yan saw that Liu Xing had been bowing his head and pondering, and asked curiously.

"I don't have a clue for the time being, can you go and call Raiden Girl over, I want to know more about the mutants." Liu Xing said with his chin propped up.

"Okay!" Chi Yan nodded and walked out of the room.

Soon, Raiden Girl walked into the room with a cold face.

"You called me?"

"Well, how about you look at my ***?" Liu Xing pushed with one palm, and a lightning bolt appeared in his hand, and the lightning struck the window violently, shattering the glass.

"What are you?" Raiden Girl asked with a puzzled expression.

"How's the power?" Liu Xing looked at the thunderbolt girl in the silver tights with his eyes and asked.

"It's okay!" Raiden Girl said with a blank expression. I muttered in my heart, this power is the strength of a first-order thunderbolt mutant, what is there to show off.

"Then show the power of your thunder and lightning!"

"Here?"

"Yes!"

"Okay, the Thunderbolt Girl was a little uncomfortable stared at by Liu Xing's straight eyes, and with a wave of her casual hand, a lightning bolt struck Liu Xing's feet.

"Sure enough, it's all the same way it works." Liu Xing nodded with satisfaction and fell into deep thought again.

The thunderbolt girl looked inexplicable, ignored Liu Xing, and walked out of the door alone.