Not a Single Ball Was Innocent During the Spring Cleaning / Science and Magic Both Have Their Flaws

After all, those who know him well know that Harry's real strengths aren't those random spells, but rather physical versions of Silence Spell, Stun, Penetration, and so on.

But these things obviously can't be taught in the classroom.

"Since Miss Weasley has already provided the answer, I won't delay any longer. Today we'll learn about Waddiwasi Spell... Now, I'll get to the important part."

As he spoke, Harry took out a specially made colored ball, and his wand was also ready in his hand.

"The incantation for the Waddiwasi Spell is 'Waddiwasi.' To successfully launch it, you need to chant the spell while simultaneously pointing your wand at both the launch target and the target... like this! Waddiwasi!"

With a swift wave of his wand, Harry's colorful ball flew across the classroom to the astonishment of all the first-year students, accurately hitting a target pattern that had appeared on the back wall of the classroom at some unknown time!

After this demonstration of hitting the bullseye, thunderous applause erupted in the classroom.

"Demonstration complete." Harry's face showed a playful smile. "To summarize: Waddiwasi Spell... mainly relies on diligence. Alright, learn it on your own now!"

The classroom fell silent again. The students, including Luna Lovegood, looked utterly bewildered, their faces reflecting the intensity of their earlier clapping.

I explained the incantation, gave a demonstration, and then... I started self-studying?

Hermione, the teaching assistant, placed a large basket of colorful balls in the center of the classroom, but none of the students took any action; almost all of them lay slumped in their seats, at a loss.

"Didn't you understand when I said self-study?" Harry's voice echoed from the podium. "The target is drawn on the back wall of the classroom. Instead of getting up and practicing, what are you all doing staring at each other like that?"

"Good."

As soon as she finished speaking, Luna Lovegood was the first to react, grabbed a few colorful balls, and ran off to practice.

"I'm going too!"

Colin and Ginny were a step behind, but they quickly got started, and soon the whole class left their seats in a rush to begin Harry's so-called 'self-study'.

In an instant, the air was filled with the sounds of colorful balls landing and shouts of waving wands. For the first time, Hogwarts' usually dull Defense Against the Dark Arts class became incredibly lively!

Chapter 195 During the Spring Cleaning, No Colorful Ball Was Innocent

"Harry, is it really okay for them to practice like this?"

Watching a group of first-year students waving their wands at the colorful ball, Hermione couldn't help but feel a little apprehensive.

Despite Harry's impressive marble-playing skills, the Waddiwasi Spell is actually a very difficult spell, and even many third and fourth-year students may not be able to use it perfectly.

Harry is actually making these students start learning now? Does he think all first-years are like him?

"Although the Waddiwasi Spell is a spell that middle and high school students usually encounter, it's actually quite easy to cast successfully as long as you have a basic understanding of the Levitation Charm and Knockback Jinx."

Harry pointed to the students who were working hard, Hermione noticed that many of them had successfully launched the colored balls, but they couldn't control the landing point very well.

"The real difficulty with this spell isn't in casting it successfully, but in hitting the target accurately," Harry explained softly. "To achieve precise shooting, besides constant practice, they also need a lot of related knowledge."

While preparing his lessons, Harry was actually thinking a lot about what Defense Against the Dark Arts should be taught in the first year.

Like Professor Quirrell last year, could you give an overview of Dark Magic, then introduce some classifications of Troll and the history of vampires?

Frankly speaking, that kind of knowledge is only good enough for first-year students to pass written tests.

Harry's understanding of Defense Against the Dark Arts is that it is a comprehensive and practical discipline with a wide range of aspects. Young wizards should start laying the foundation for future wizard duels from their first year.

They need to master some basic offensive and defensive spells, develop excellent physical fitness and reaction speed, and also need to have a broad knowledge base.

As for the concepts and introductions to various strange creatures that were originally taught in class, those were the least important things and were basically useless except for passing exams.

After all, aside from Harry, there probably isn't any other first-year student in the world unlucky enough to have to confront Troll... especially in the Girls' Bathroom!

"Heh, so this is what you call 'matching knowledge'~" Hermione glanced at Harry's test paper and couldn't help but curl her lip in disdain. "I bet your test paper is just as unpopular as Lockhart's."

"If I remember correctly, someone got a perfect score on Lockhart's test back then?"

"Ugh, don't say that..."

"Just kidding~" Before Hermione could get angry, Harry grabbed her hand. "Help me scatter the test papers among them, the more scattered the better."

Harry was met with a playful glare from the girl...

"Harry..." Ginny, who had been daydreaming, secretly turned around, only to find the substitute teacher and teaching assistant whispering intimately in each other's ears in front of the podium. She couldn't help but feel a pang of bitterness in her heart.

"Oops, it went wide!" Luna Lovegood, who was practicing, seemed to have made a sudden mistake. The colored ball she shot went several meters off course for some reason and almost hit another student in the face.

"Alright, you've all practiced enough, come back now." About halfway through the class, Harry called back all the students who were practicing.

In just a short time, the entire back wall of the classroom had been covered in graffiti, making it impossible to discern its original color.

"Next, we will have a pop quiz."

Harry asked Hermione to scatter the exam papers above everyone's heads. Dozens of parchment sheets fell like snowflakes. The students reached out to grab them with some skepticism, only to find that they were covered with all sorts of questions.

"Answer seriously, these are all easy points." Harry calmly announced the start of the test, then suddenly added with a mischievous grin, "The worst performer will have to stay and clean the classroom; the paint on the entire wall needs to be cleaned up!"

"Huh?" *N

Immediately, the entire classroom was filled with complaints.

The naive first-years then realized that Harry had actually set a trap for them!

The more fun they had, the worse the cleanup will be for those left behind... Sure enough, no colorful ball is innocent during a big clean-up!

"Granger, something's weird!" Suddenly, a boy from Gryffindor House raised his hand and shouted, "I think I've already written the answers on my test paper..."

"Diffindo!" Before he could finish his sentence, Harry unleashed a spell that instantly shredded his exam paper into tiny pieces.

"Student, you can now get a zero. You'll have to stay after class."

"No... no way?!"

Harry's smile, to the boy at that moment, looked like the smile of a devil, enough to make him tremble and scream in terror.

"Before the test, let me say one more thing," Harry said, his gaze sweeping over everyone. "What do you really think Defense Against the Dark Arts against? Dark Magic and dark wizards are both known for their cunning and deceit. When it comes to darkness, no one will listen to the rules of the school. So even if you think you have the upper hand, you'd better remember to stay calm and cautious, otherwise... it's easy for someone to turn the tide and defeat you completely!"

"I'll try my best~" For some, Harry's words, though realistic, can still be encouraging...

For example, Ginny.

But when she picked up the test paper, she suddenly felt like committing suicide.

Suppose two students, A and B, are standing 100 meters apart on a playground. A uses Waddiwasi Spell to propel a ball at B. The ball's speed is 50 meters per second. Ignoring air resistance, what part of B's body will the ball ultimately hit?

Ginny:(@_@;)

This isn't an easy question, it's practically a death trap!

"These students are really unlucky to have such a heartless teacher like you~" Hermione rolled her eyes at Harry with disdain as she looked at the first-year students below, whose faces were full of bitterness and resentment.

Sure enough, following the eagle-headed Bronze Door Knocker, Harry finally extended his clutches to the future of Hogwarts.

"Hey, I already left them a backdoor, it's their own fault for not daring to use it." Harry shrugged nonchalantly, a smug grin spreading across his face. "Besides... how could you possibly hit Waddiwasi Spell accurately without some math and physics knowledge?"

Harry's test papers weren't all blank; at least three were filled with answers. So, if the first-years dared to secretly swap the papers, passing would be a breeze for everyone.

Unfortunately, the backdoor that allowed cheating on this pop quiz has remained almost undetected so far... even though they have discovered a set of standard answers.

The Black Safety class cannot be taught like other courses by simply reading from the textbook. Therefore, in addition to teaching them spells and knowledge, Harry hopes that they can demonstrate something extra in class.

For example, the courage to unite as one, and the resourcefulness to adapt to changing circumstances...

"Hmm, that's a bit strange~" As he thought about it, Harry suddenly frowned for no apparent reason.

I'm just filling in for someone to get by, why am I worrying so much about it?

Chapter 196 Science and Magic Each Have Flaws

"Okay, test over!"

Another agonizing hour passed, and just before the morning classes were about to end, the test finally stopped.

"Miss Weasley, who got the lowest score, and the gentleman who just lost his test paper, remember to clean the whole classroom!"

When the results were announced, some people were happy and some were sad, but among the most saddened people, there was definitely one person named Ginny.

To be honest, Harry wasn't targeting her on purpose, but as a Pure-blood wizard with nine black holes in his head, Ginny's mathematical knowledge was so lacking it was almost unbearable to look at.

Regarding the question about A and B being 100 meters apart, Ginny meticulously wrote down and underlined B's injured areas from his chest to his ankle, even including his groin, but she just couldn't figure out... the ball couldn't possibly hit B at all!

In contrast, Luna Lovegood, who was also not very good at math, was much smarter.

Her eyesight was the best of all the students, so when Hermione was Hermione out the papers, Luna Lovegood had already spotted a paper full of answers.

She was probably the only student who saw through the true meaning of the test, but unfortunately, she was too lazy to care about other people's business and just signed her name and lay around the whole time.

"Anyway, from now until the end of the school year, there are still about three months left. Enjoy your Defense Against the Dark Arts Class!"

Before leaving the classroom, Harry suddenly gave the whole class a sinister smile, like that of a viper, which immediately made the hearts of the group of young wizards pound.

Strangely, Harry himself didn't seem to notice, and his expression immediately returned to normal after leaving the classroom.

"Harry, wait a minute... can I take another picture of you?"

In the corridor, Harry was stopped by Colin, who had caught up from behind. After a moment's hesitation, the little fanboy made another request for photos.

His previous photos were either ruined by Lockhart or destroyed along with the camera. Now that he has a new camera and Harry has become his substitute teacher, Colin naturally wants to take new photos of his idol to commemorate the occasion.

Coincidentally, Harry was also looking for him.

"Taking photos is no problem, of course, but I need a favor," Harry asked Colin. "After lunch, could you bring your camera to the Defense Against the Dark Arts professor's office? Oh... if Luna Lovegood is free, it would be best if she could come along too."

The next sentence was spoken by Harry to the blonde girl who was passing by.

"Okay." Luna Lovegood's answer was as straightforward as ever.

"I'm fine! If anything is needed... I'll do my best!" Colin quickly agreed, as if afraid that Harry would cancel the mission if he was even a second late.

"It's settled then, see you after lunch~"

After watching Colin leave, Harry nodded to himself.

"That way, the personnel responsible for recording and verification are all taken care of."

After lunch, Granger and Luna Lovegood and Colin, the two first-year students, met in the now-empty Professor of Defense Against the Dark Arts's office.

After Gilderoy Lockhart was driven mad by Harry's glare and after his various heroic deeds were exposed through official channels, he was sent directly to Azkaban to be treated by the prison doctor and Dementor.

Naturally, the office was left empty, and all the suitcases and narcissistic photos were gathered up by Filch and thrown directly into the incinerator.

However, what Filch didn't know was that during the time he was still asleep, Lockhart's belongings had already been ransacked by Harry.

The original manuscripts of his novels, many magical items and materials that could be converted into cash, and most importantly, the key to Gringotts Vault, which he had kept in his suitcase, were all now stuffed into Harry's Space Ring.

Keeping a large number of Fantastic Beasts is a considerable expense, and Harry can't rely entirely on Scamander for financial support. Moreover, Hermione has a wish to be a housekeeper, so of course he has to do his best to raise money to help her achieve it.

When it comes to making money, exploiting legal loopholes to plunder and steal ill-gotten gains is naturally the only way to get rich. Otherwise, why would there have been so many Robin Hood-like figures in ancient times who robbed the rich to help the poor?

However, Harry also made a strange discovery: Lockhart's belongings seemed to have been moved by someone else, and some things that Harry was very interested in were missing... such as the Occamy Egg shampoo that the guy invented.

Of course, Lockhart's matter wasn't the main point. The reason Harry called the two first-years here was because he needed their help in identifying the evidence.

Voldemort's diary from his youth Lucius Malfoy's wand—these two items had been kept by Harry for a long time, and it was time to deal with them.

"Everyone put on your masks and stand back. Colin, when I call you, take photos as evidence as I ask."

After giving the three instructions, Harry quickly put on his gloves, took out a brown reagent bottle with a nozzle, and began to carefully spray an unknown liquid onto the diary.

He was spraying silver nitrate solution, a fairly common fingerprint collection method in criminal investigation. Through the chemical reaction between the solution and latent fingerprints in sweat, fingerprints that have been there for months or even longer can be clearly extracted.

Of course, Harry wasn't sure if he would succeed, but since Lucius had put the diary in Ginny's Cauldron, it meant that he had at least come into contact with the diary during the summer vacation.

Harry refused to believe that he could wear gloves all the time at home.

If Harry could obtain the fingerprints on the diary, along with the fingerprints Lucius left on his wand when he was forced to duel him, Harry might have a chance to completely bind Harry to this diary!

"He's here! Colin, come over here for a picture!"

"OK!"

After carefully spraying the inside and outside of the diary, and with the wand providing continuous illumination, Harry finally saw brown and black marks of varying sizes on the diary!

"Thank goodness it worked..." Harry felt extremely relieved as he watched Colin take fingerprint photos one by one.

In fact, as soon as Harry left the Chamber of Secrets, he had already decided to use the fingerprints as Plan B to prove Lucius guilty.