The unicorn jumped onto the podium under Calvin's control.

"The potion I just asked you to drip on the grass is a magic tracker I invented, and after being taken by magical beasts, through some methods, you can clearly see the structure of magic in the body of magical beasts."

"Structure determines nature." These three bold words appeared on the drawing paper behind Calvin, and the young wizards below began to write them down.

"The reason why you are in contact with unicorns today is because the magic structure in the unicorn's body is simple enough for you beginners."

Calvin's wand pointed at the unicorn on the podium, and the unicorn's hair and skin gradually became transparent, revealing the silvery blood and milky white internal organs in the body, which were soon invisible, leaving only gray bones and a blue flowing liquid - starting from the unicorn's horn and flowing along the spine, the chest split out a stream to the heart, and the rest continued to flow to the tail, where it came to the end, making the tail hair glow blue.

"This is the structure of magic inside a unicorn. Who can see that there are three important nodes in this structure? ”

Cedric, the excellent student of Hufflepuff, quickly raised his hand.

"Mr. Diggory."

"It should be the horns, heart and tail of a unicorn."

"Very good, Hufflepuff plus five points. Let's turn to the textbook and go to page eighty-eight, 'The unicorn's horns, blood, and tail hair are all very magical,' and put an asterisk here. ”

"Note that this corresponds to the three important nodes of the unicorn's magic structure."

"The horns, as the starting point of the structure of magic, are very sensitive to magic, and unicorns usually use them to judge good and evil in people.

Mr. Weasley, you don't need to be excited, the unicorn rejects you because judging good and evil is actually a very complicated process, and even Professor Dumbledore can't make a correct judgment in a short period of time. Therefore, the judging criterion of unicorns is more about whether the mind is pure, and it is obvious that witches are more dominant in this regard. ”

George remembered that the unicorn had refused his actions and wanted to stand up and explain that he was not a dark wizard.

"The tail, as the end point of the mana structure, collects a lot of escaping mana, which makes the unicorn's tail hair a good conductor of mana, and the wand made from the unicorn's tail hair is powerful and very loyal."

"The unicorn's heart is another end point of the mana, and the magic here is carried away by the blood that flows through the heart, so that the unicorn's blood has a powerful healing effect, and it can almost bring the dead back to life."

At this point, Collins Foley raised his hand and asked, "But, Professor Cape, I've heard that unicorn blood carries a powerful curse, and I haven't heard of anyone using unicorn blood to prolong life." ”

Calvin nodded, "Great, Slytherin plus five points, that's what I'm going to focus on next." ”

"The blood of a unicorn can sustain life, even if it is a dying life. But that person has to pay a terrible price for it, because killing a unicorn is an extremely brutal thing. In order to save his own life, he slaughtered another pure, weak and helpless life.

So never try to do that, from the moment its blood touches your lips, you will have a half-dead life, a cursed life. Calvin scanned everyone in the classroom with a stern gaze, especially the Weasley twins for a moment.

Calvin saw that every wizard in the classroom was terrified, and this time he continued the lesson: "It should be noted that the other two parts of the unicorn are closely related to healing. Legend has it that unicorns use their horns to heal wounded travelers in the forest. A wand made of unicorn tail hair is much easier to use when performing healing magic. ”

At this time, a discordant voice sounded in the classroom: "But Professor, is there any use in what you are talking about?" ”

The classroom could hear pins dropping, and all the little wizards stopped their pens and looked up at the young professor.

"Looks like people are skeptical about what I'm teaching." Calvin closed his textbook and pulled out his wand, "Since you're asking me what's the use, you're in for a treat." ”

Calvin waved his wand, and the magical structure in the unicorn's body flew out, gradually becoming smaller and smaller under Calvin's control, floating in midair.

Calvin looked meaningfully at a Slytherin schoolboy, transformed his textbook into a goat, and threw a cutting spell at it, splattering blood at the boy's feet.

Then the floating magic structure approached the goat's wound under Calvin's control, and in an instant, the goat's wound healed quickly.

"The unicorn's magical structure determines that it has a healing effect." Calvin redrew the mana structure in the air with his wand, and under his control, the mana structure rapidly deformed, leaving only a triangle, a wavy line, and a dot.

"I believe that the classroom should be filled with students who take the Ancient Demon Script, do you know this symbol?"

"It's a healing spell." Cedric grew his mouth, a little incredible.

"That's right, so you should be able to understand by now why unicorns have powerful healing powers. You can even think of the unicorn as a vehicle for the original version of the healing script. ”

"By studying unicorns, you can restore a powerful ancient magic called the Resurrection Curse."

"If you don't think this has anything to do with protection, then look at this." Calvin waved his wand and used it as a pen, drawing a fire dragon in the air with a few strokes.

"Actually, I don't want to let you come into contact with a dangerous 5X-level animal like a fire dragon so early, but I was questioned by students about my teaching method, and I still let you see the world."

A fifteen-foot miniature fifteen-foot dragon flapped its wings in the air and roared, three bright lines emerging from its transparent body. Many of the students trembled with fear, and the Slytherin student didn't dare to move even when he faced the dragon's fangs.

"Fire dragons, one of the most dangerous magical creatures, have three different magical structures in their bodies, passing through their left wing, right wing, and head."

"The starting point of the three magical structures is the heart, and they begin to diverge behind the dragon's neck, pay attention here." Calvin marked important locations with red circles.

"This is where the three magical structures meet, but very close to the skin, protected only by a thin, fragile scale. In the Far East, this scale is called the reverse scale. ”

"Experienced and powerful wizards can defeat the powerful fire dragon with a single move just by attacking here. But I don't recommend that you do that, or I'll have to go to the dragon's dung to find your wizarding robes. ”

"Now we continue to learn about unicorns." Calvin flicked his wrist, and the miniature version of the fire dragon dissipated in the air, and his voice continued with a calm voice, as if the fire dragon that shocked the audience just now did not exist.

"Professor~" The Slytherin wizard who questioned Calvin swallowed a mouthful of saliva and said tremblingly.

"What's the matter? Graham Monty. Calvin turned his head, stared at Montay with blood-red eyes, and asked calmly.

"Professor, have you ever recovered any magic from the dragon?" Meng Tai asked aloud.

"Yes," Calvin said lightly, lowering his eyelids, "but the clearing here is too small for me to perform." ”