An invisible blade cut across the night sky, carrying Harry's full fury, and shot towards Sirius's head.
Sirius had merely casually raised his hand, conjuring a Shield Charm.
For these third-year youngsters, his defense was almost subconscious; he didn't even seriously consider what spell Harry would use.
In his mind, these third-year youngsters simply didn't have the ability to break through his defenses.
However, when Harry's voice rang out, Sirius's expression instantly changed.
Sectumsempra?!
Snivellus's most potent and deadliest spell.
How did Harry even learn this spell?
In that instant, Sirius felt his Shield Charm being cut open without resistance, like butter meeting a hot knife.
Sirius didn't have time to think, his body reflexively turning his head sharply to one side.
Instantly, he felt a sharp edge graze his ear, completely clearing the hair from his temple.
"Harry, how could you use Snivellus's spell? That spell has the shadow of Dark Arts behind it!"
Snivellus?
Harry froze for a moment then furiously retorted, "How dare you insult Professor Snape!"
Seeing that his attack had been dodged, he unhesitatingly raised his wand again, attacking Sirius.
"No matter if it's Dark Arts or white magic, as long as it can take you down, it's good magic!"
He gripped his wand tightly, feeling the desire to kill for the first time in his life.
This desire was incredibly strong, making his spells faster and more vicious with each cast.
He wanted to kill this hateful person and avenge his parents.
Hermione and Ron exchanged glances and unhesitatingly joined in the siege on Sirius.
Ron roared, "Black, with us here, you won't harm a single hair on Harry's head."
"Surrender quickly, Harry's spells are fast, you won't feel any pain."
Hermione said nothing, merely observing the situation before them silently, then aiming her spells to intercept during the opponent's dodging gaps.
For a time, the trio's tacit cooperation left Sirius in a sorry state.
He could only continuously dodge by relying on the trees in the Forbidden Forest, occasionally counterattacking with Expelliarmus and Stupefy.
Careless!
He should have launched a sneak attack, disarming them first before talking.
He hadn't expected a few third-year students to push him to this extent, leaving him almost no chance to fight back.
Why are kids so formidable nowadays?!
Was he going to be defeated by these children here?
"No!" Just thinking of this possibility, he roared madly, "I've waited too long, I absolutely cannot miss this opportunity today!"
He no longer held back, unleashing spells with all his might at Harry and the other two; he wanted to make these children calm down first.
For a moment, spells flew everywhere in the Forbidden Forest.
"This opportunity today?!" Harry shouted, "Then try it!"
Harry abandoned his defense, directly charging at Sirius, enduring his attacks.
He didn't care that he was only thirteen and the other was an adult Wizard with a notorious reputation; he only wanted to do his best to close the distance so the other party couldn't dodge his spells.
Moreover, he was wearing a protective vest made of Basilisk skin, and various button-shaped protective items, so Sirius's attacks couldn't break through his defense for a while.
Perhaps startled by Harry's courageous actions, Sirius was slightly distracted, and his dodging footsteps also slowed a bit.
Seeing this, Hermione's eyes lit up, and she seized the opportunity to cast a spell.
"Incarcerous!"
Hermione's shout brought Sirius back to his senses.
Not good!
He actually got distracted during a battle.
Before he could dodge, he was tightly bound to a nearby tree by a flying rope.
"Expelliarmus!"
A red light struck, and Sirius's wand flew out of his hand, soaring high into the air, caught by Ron who had just arrived.
Sirius was tied to the tree, his thin chest heaving rapidly, and he looked at Harry, who had stopped, letting out a sneering laugh.
"Excellent teamwork, truly impressive."
"Are you going to kill me, Harry?"
Harry firmly raised his wand, aiming it at Sirius's chest.
"You killed my parents, I will avenge them!"
"I don't deny it," Sirius said softly, looking into Harry's eyes, "but you should listen to the full story, otherwise you'll regret it..."
"Regret? Full story?" Harry laughed in anger, "I don't want to hear a word you say, you can go down and tell my parents the full story."
"Sectumsempra!"
"Stop!" At the last moment, a gray figure shot out from the Forbidden Forest, directly blocking Harry's spell with its body.
It was a fearsome, upright, wolf-like monster, over two meters tall, its massive body almost filling Harry's entire vision.
It was covered in thick, coarse, and messy grayish-Black fur.
Its mouth was slightly open, revealing sharp canines, accompanied by ferocious claws, looking extremely impactful.
The newcomer was Lupin, transformed into a Werewolf.
Tonight was the full moon; after drinking the Wolfsbane Potion, he had quietly stayed in his office, preparing to spend a boring night.
Although everyone already knew he was a Werewolf, he had no intention of walking around the campus in his Werewolf form after the moon rose.
That would scare many young Wizards.
Bored, he unfolded the marauder's map he had confiscated from the Weasley Twins two days ago and started to pass the time.
However, the two names in Hagrid's cabin completely stunned him.
Sirius Black and Pettigrew!
Before he could even wonder if he was seeing things, Lupin saw these two names leave the cabin and enter the Forbidden Forest together.
Then came the names of Harry and his two friends, who followed closely behind.
Lupin could no longer sit still, so he left the Castle before transforming, coming to the Forbidden Forest to search for their traces.
He stood there panting heavily, filled with relief.
He finally made it!
He looked at the bleeding wound on his arm and sighed slightly in relief.
Fortunately, the injury wasn't very deep.
But honestly, Snape's spell was truly powerful.
Luckily, the moon had already risen, and he had transformed into a Werewolf, enduring the spell with the Werewolf's high magic resistance and strong physique.
If he had been in human form, he would have been seriously injured.
Seeing a Werewolf appear before them, Ron shrieked and retreated repeatedly.
Merlin.
There really was a Werewolf in the Forbidden Forest!
Hermione hesitated, then asked tremblingly, "Professor Lupin, is that you?"
Lupin ignored Hermione's question and turned his head to stare intently at Sirius.
"Sirius, where is that person?"
...