Rubik’s Cube of Heavens

Tuesday.

Kewen usually went to the edge of the cliff early in the morning to review the "Three Dou Techniques", and then returned to the auditorium to wait for dinner.

This morning, there are two 'Defense Against the Dark Arts' classes in a row, and this class is one big class a week.

The professor of Defense Against the Dark Arts is a bald middle-aged man named David Kuros, who is a new professor this year.

The professor seemed very professional. After class, he carried a suitcase in his left and right hands. He didn't say much after entering the classroom. He first opened the suitcase in his right hand and placed it at the innermost side of the classroom.

In addition, the Defense Against the Dark Arts classroom is a rectangular room with a large space, with a layout of 20 meters long and 15 meters wide.

Professor David Currows took the contents out of the box and assembled it, resulting in a device that resembled a baseball transmitter.

After the arrangement was properly arranged, Professor David walked slowly to the middle of the classroom and said to the students: "Before the lecture, I need to remind everyone that the main purpose of my course is to teach you how to defend against black magic and how to use it when you are in danger. Magic spells save you from danger, not to teach you black magic or curses."

Looking around at all the students, Professor David continued: "I don't want any idiot in the future trying to let me teach him some curses or something."

The bad tone made the students of the two academies Gryffindor and Slytherin dare not breathe.

Satisfied with the effect he caused, Professor David nodded and continued: "Then first of all, who can answer my most commonly used defensive spells?"

All the students seemed to be frightened by the professor's previous attitude, and no one raised their hands for a while.

Seeing this, Professor David couldn't help but look ugly, narrowed his eyes slightly, and said in a deep voice, "Answer my question! Does anyone know such simple common sense?"

"If so! Then I will express my great disappointment with you, and I will deduct twenty points from each of your two academies."

As soon as Professor David finished speaking, students from the two colleges raised their hands.

"Come on!" Professor David pointed to a Slytherin student.

"Professor, it's an obstacle spell."

"Well." Professor David said with a stern face and nasal voice, and then asked: "Who else knows the other answer?"

The students who knew raised their hands again.

"Come on!" Professor David pointed to a Gryffindor sitting in the front row of Kewen.

"And the Armor Charm, Professor."

"Hmm." Professor David pronounced through his nose again.

Without giving points to students who answered correctly, Professor David stepped forward to the baseball transmitter-like mechanism.

Standing still and turning around, Professor David said, "Listen, now I'll teach you the mantra of the Obstacle Mantra."

Raising his voice, Professor David read: "Impedimenta, remember? Impedimenta! What are you waiting for? Read to me! Impedimenta!"

"Impedimenta." The ragged reading voices rang out one after another.

Professor David asked everyone to read it five times, and then he continued: "Remember the essentials of the wand movement, toss it forward with force, no matter from which direction, as long as the wand is tossed forward, and the tip of the wand is pointed in the direction of the source of danger, Remember!"

"Remember..." The answer sounded.

"Get up, come down and line up!" Professor David commanded.

The students got up one after another and came to the open space to divide into two columns according to the college and stand up.

"Next, I will use this magic prop to fire a hollow rubber ball at you." Professor David said while slapping the machine beside him, "What you have to do is to block the block with the obstacle spell I gave you. Rubber balls, don't let them fall on you, understand?"

"understood……"

"Gryffindor first!" Professor David pointed at the student at the front of the column with his wand: "Are you ready?"

"Yes, I'm ready to teach.

"

The student at the forefront of the column was Benedict Shaq, who was so nervous that he kept swallowing saliva, and the wand across his chest trembled slightly.

Professor David ignored Benedict's nervousness. After saying "I'm starting", he immediately pressed the button on the top of the machine beside him.

With a 'whoosh', a red rubber ball instantly shot out from the cylinder in front of the machine.

"Heavy obstacles..."

Bang!

There was a muffled sound that seemed empty, and before Benedict could finish chanting the spell, the rubber ball had already hit his chest.

At the same time, Benedict also read the last pronunciation, but because he was hit, the wand in his hand did not move, and the whole person was stunned there.

"Reading so slowly, do you think you're reciting poetry!" Professor David reprimanded dissatisfiedly: "Be sharp! While chanting the mantra, the wand is also waving for me! Don't wave the wand after the mantra!"

"Yes, yes Professor..." Benedict responded cautiously.

"One more time!" said Professor David. "Get ready!"

After that, start the machine again.

"There are many obstacles!" Benedict chanted the spell faster this time, and at the same time remembered what the professor said and waved the spell in advance.

Bang!

There was an empty sound again, but unfortunately, although Benedict successfully released the spell, he was still a step behind and let the red rubber ball hit his chest again.

"You go to practice for me!" Professor David said with a stern face: "Now I remind you, you are still so slow! Do you want me to remind you next to you when you fight people or dangerous magical creatures in the future! Go! While practicing the speed of casting spells! The next one goes forward!"

As Benedict walked away with a sad face, Kewen stepped forward lightly, his arm holding his wand hanging casually beside him.

"Are you ready?" Professor David reminded Kewen as usual.

Seeing Kewen nodding, Professor David pressed the button again to start the machine.

Bang!

A red rubber ball rushed out of the cylinder in front of the machine and shot at Kewen.

"There are many obstacles."

The voice was neither light nor heavy, and the speed of speech was fast. The wand in Kewen's hand was only slightly raised, and the tip of the wand was aimed at the direction where the rubber ball was flying.

Bang!

An invisible barrier instantly blocked the rubber ball, causing the ball to bounce back quickly, land halfway, and roll back to Professor David's feet.

Professor David was stunned for a moment, but he immediately put away his expression, nodded slowly and said, "Yes, but now is not the time for you to show off. You should do as I said and slam the wand in front of you."

"Can you ask why, Professor?" Kewen asked.

"Because you will not face something as light as a ball in the future." Although Professor David had a bad attitude, he still answered the question dutifully: "No one knows how heavy the dangerous attack you will face in the future, so you swing The action of the wand is to make the defensive emotions in your heart stronger, and the stronger the emotions in your heart, the higher the defensive effect of the magic spell."

"Understood, thank you Professor." Kewen nodded suddenly and thanked him...