It was a mess, with elves flying around like rockets, destroying everywhere, and some of them even grabbed a student and picked him up. A few others rushed out of the window and removed a floor of broken glass in the back row of the classroom. The rest wreak havoc in the classroom, more powerful than a rampaging rhinoceros. They grabbed inkwells and threw them at the class, tore books and paper to shreds, tore pictures from the walls, turned waste bins upside down, and threw bags and textbooks out of broken windows.

Luo Cheng used the iron armor spell to block the debris flying towards him, and did nothing.

"Professor Lockhart, I think you should have caught these Cornish elves, they're all second-year students, and they can't deal with so many Cornish elves."

"Huh? That's right, that's right! Come on, bring them together, bring them together, they're just pixies." Lockhart shouted. He rolled up his sleeves and waved his wand and shouted, "Peschipixipestromy!"

The imposing spell had no effect because it wasn't a spell at all. An elf grabs Lockhart's wand and throws it out the window as well. Lockhart gasped and slipped under the lectern table.

So everyone did the same, half of the class hid under the table, and only the unlucky guy was dangling from the chandelier.

"Help me!"

"It's Neville, long time no see."

Luo Cheng finally remembered who the unlucky guy who hung on the chandelier was, and with a wave of his wand, Neville was able to get out of his predicament and slowly land on the ground.

"Professor Luo Cheng, help us!"

Harry was battling with an elf who was trying to take his glasses.

"I'm just an assistant hired by Professor Lockhart, and I can't interfere with his classroom teaching."

At this time, the bell for the end of class was over, and everyone wanted to rush out with their lives. But Lockhart was faster than all of them, "Ah, it's okay Professor Luo Cheng, I suddenly remembered that I still have to reply to the letter from the book lovers, please help me catch those remaining elves back in the cage!" ”

The guy escaped faster than anyone else, ran out of the classroom in front of everyone, and then shut them up as soon as he got out, leaving only Luo Cheng and a group of second-year students looking at each other.

"Hmm, well, I think there's something going on with Professor Lockhart, so let's join me in getting these Cornish elves back!"

He waved his wand and used the immobilization charm to immobilize the two elves who were trying to attack Hermione.

"It's pretty easy to deal with Cornwall elves, but you need to understand the characteristics of this creature first. Honestly, you should know more about this in the Conservation of Magical Creatures class - this kind of pixie is a very mischievous elf who likes to play all kinds of tricks and pranks. As you can see, they don't have wings, but they can fly. Pixies like to grab the ears of the unsuspecting, lift them up and throw them onto the treetops and rooftops, because of their great strength. ”

Hearing this, Neville couldn't help but shrink his neck.

"Well done Harry, give it a punch."

Luo Cheng casually praised Harry Potter who was fighting hand-to-hand with elves, "This kind of little thing has its own language, of course, only they understand what they are talking about." In the 17th century, a wizard named Devona Fmagee was kidnapped by elves while on holiday in Cornwall. This caused her to develop a lifelong fear of elves, and even asked the Ministry of Magic to humanely wipe out the entire elf population. Of course, the Ministry of Magic rejected this approach, because the Ministry of Magic found this kind of elf to be valuable and easy to deal with, and only needed to master a fixation charm, so let's learn it with me! Immobulus！ ”

Under Luo Cheng's teaching, soon this group of little wizards mastered the immobilization spell, and the elves were caught one by one and stuffed back into the cage.

"Professor, you said that the Ministry of Magic found the Cornwall elves valuable, what is the value?"

Hermione asked.

"Well, Cornwall elves have an extraordinary trait - that is, to stay forever young when they are alive!"