"Whoa—whoa—"

What is it?? Greene hurriedly stood up, his eyes wide and he looked out, but the sky ahead was empty.

Several little fairy dragons were also awakened by this harsh sound, but they looked very strange, they first shook their bodies and opened their eyes, then they were stunned, and then immediately flew out of Green's arms.

When they flew out of the cave, they did not fly away, but raised their heads and screamed for joy towards the top of the cliff.

At the top?

Greene hurriedly poked his head out to look up, only to see a black shadow clinging to the cliff of the peak, whizzing down from the top of the mountain at an angle of almost 90 degrees vertical.

It was like a black lightning bolt that appeared from the sky, like a bamboo, like thunder, pulling out a white storm on the white snow-capped mountain!

The piercing whistling sound, like the roar of an eagle and the roar of a owl, was more shocking than thunder and more terrifying than the roar of a dragon!

Greene watched in amazement as the dive bomber-like thing approached the ground at a frantic speed, then stopped instantly, then climbed rapidly, drawing a perfect arc in the air, and then flew backwards towards the cave, and in the middle of the flight, it spun its body, adjusted its posture, and then landed on all fours, pulling two deep scratches on the ice of the cave.

Looking at the black shadow that stopped in the cave, Green's mouth opened wide, and he was stunned for a while.

After a long time, a thought flashed through his mind:! This is a night wrath!

...

"Xiao Linzi, do you know what one of the most striking characteristics of the Night Evil is?"

"What is it?" asked Green, closing the Book of Dragons, curiously.

"I'm not going to tell you that," Nebel smiled mysteriously, "but you'll get to know it soon!"

...

Looking at Blackie, who was shaking and jumping off the back of the Nightwrath Dragon, Greene let out a sigh of relief, and then remembered what Nebel had said earlier.

"Nebel?"

"Oh buy it!" was a mixture of admiration, shock, and disbelief in Nebo's voice, and what he said next made Greene very confused.

"It's incredible!This is really a great discovery!hahahaha~, if I can study this kind of thing, the great Neber will be free to speak in the future!ahhahaha~"

Listening to Nebel's maniacal laughter in his head, Greene plucked out his ears: "The scream of the night swoop?"

"Screaming?boy, I told you a long time ago, this is a distinctive feature of the Night Evil, the obvious Doppler effect!I already knew!Now I'm talking about the fairy dragon!hahaha~, what a magical dragon!ahhahaha~"

"The Doppler effect?" Greene was slightly stunned, but quickly understood.

When the Night Wrath dives at high speed at an angle of more than 45°, the sound wave is compressed, and the frequency increases, sounding like a scream. This situation is actually very similar to the dive bomber on the earth, but he didn't expect that the dragon could also produce this effect, which surprised him.

So what's so strange about the fairy dragon?

"Xiao Linzi, did you notice those hair-like fluff on the tips of the fairy dragon's ears just now?"

"Fluff?" Greene glanced at the little fairy dragon who was jumping and jumping around Xiao Hei in surprise, and said strangely, "What's wrong?"

"Haha, just now, Night Evil was about to come back, but it was still far away, and I actually received some strange waves. Then I took a look and found that this was actually the way the fairy dragon could contact from a distance. They can sense each other from a great distance and send simple messages, and these waves are emitted through the fluff on the tips of their ears!"

"Radio?"

"You can understand that!" replied with a laugh.

"What does that have to do with you?"

"Hahaha, Xiaolinzi, you know a fart! As long as I understand this principle, I can make corresponding things. In this way, you don't have to rely on contact with you in the future, and you can 'speak'. In the future, I can say whatever I want, sing as much as I want, I'm the most shining!ahahaha~" Nebo laughed wildly, and then said, "But you have to find me some suitable materials!"

Sing as much as you want, say what you want? Greene's mind couldn't help but have a picture popping up: Nieber babbling 24 hours a day, and because he couldn't stand it, he became nervous, and then hanged himself......!

"Uh, this, this... I'd better go and see how Hei is doing first!"

"Xiao Linzi, this can't be said later! This matter must be done quickly, you know? At least in the queue"

......

Putting the Book of Dragons back in his pocket, Greene rubbed his forehead and walked over to a few fairy dragons who were chattering and cooing around each other.

Blackie's appearance doesn't seem to be a problem, if there's one problem, it's that his belly looks bigger!

"Hiccup!Whoa~"

Is this enough? Greene laughed and picked it up from the ground.

Its body was a little cold, and it shivered from time to time, but its spirit was very good, with an excited face, waving its little claws and screaming from time to time, obviously like telling the other little fairy spirit dragons around it about the experience just now.

"Hmm~"

Looking at the few children around him, Pikachu snorted angrily, and Xiao Hei's mouth that was still chirping suddenly didn't dare to make a sound.

It jumped from Green's arms to the ground with an honest face, and then ran to his mother's side and rubbed it, Pikachu tilted his head and didn't even look at it, just stared at the night demon who was looking at it not far away.

Nightshade paced lightly, and as soon as Pikachu walked farther away from it with a few of the children, apparently refusing to allow it to approach his own again.

"Wow~"

Nightshade screamed aggrievedly like a child, and then glanced at Green, who had been staring at him.

"Hi, hello!" Greene greeted him with a friendly smile on his face when he saw the night fire that he had seen.

Nightshade glanced at the two-legged guy in front of him lightly, and turned away without interest. It opened its U-shaped mouth slightly, and like an electric weld, it spewed out a short path of dazzling and bright white dragon flame, which dried the ice and snow on the ground, and then lay on it and took a nap.

"Uh~" Unexpectedly, the first contact failed like this, Greene shrugged helplessly, and had to take out the Book of Dragons and ask, "Nebel, how should the Night Evil be tamed?"

"Ahh

“......”

Unexpectedly, he touched another nail, Ge Lin touched his nose, and had to open the Book of Dragons by himself, "Night Evil, uh, taming method..."

"Nightshade, one of the most intelligent dragons, is very curious, has a loyal personality, and is easily emotionally engaged. Therefore, if you want to tame a night evil, it is the most correct way to arouse its curiosity, establish friendship with it, and then slowly develop a deep relationship with it. ”