Perhaps it was to make up for the regret

After hearing Irina's words, Sirius fell silent again.

"Why? I mean, why would you help me like this when we've only met twice in total? Even when you found out that Peter Pettigrew was the rat in the Weasley family and planned everything, we had never met before..."

Sirius asked in a low voice.

Irina held her chin with her hand, thinking. She said softly, "Why? If I were to give a reason, there would be many. For example, I am Harry's friend, and you are Harry's godfather; or you are Lynn's father's comrade-in-arms and his uncle. But if I really want to give a sincere reason..."

"Maybe it's to make up for the regret!"

Irina smiled and said.

Now that she and Lynn have traveled to this familiar yet unfamiliar world, and the words that were once written in the book have become reality and presented themselves before them, then perhaps everything they have done and everything they have changed is to make up for a regret.

Make up for the regrets in your heart.

"Make up for...regrets? Well, you've convinced me."

Sirius savored Irina's words carefully, he smiled and said.

Irina handed a piece of parchment to Sirius and said, "This contains the password to the Gryffindor common room, as well as Harry's dormitory number and Ron's bed number. Be careful not to hurt anyone by mistake."

Sirius took the parchment and nodded, "I understand."

After handing the parchment to Sirius, Irina returned to the bottom of the Whomping Willow along the secret passage she came from. When she came out of the entrance of the secret passage, a figure was already waiting for her there.

"All done?"

Lynn asked as he reached out and pulled Irina out of the narrow entrance to the secret passage.

Irina nodded vigorously, gave him a thumbs up, and said, "It's all done. He will leave from the Shrieking Shack in about ten minutes."

Lynn nodded slightly and said, "Okay, you go back first, and leave the rest to me."

"Okay, be safe!"

Irina was not polite either. After giving Lynn some instructions, she quickly cast an Disillusionment Charm on herself and headed towards Hogwarts Castle.

After watching Irina leave, Lynn also cast an illusion spell on himself, but he did not leave. Instead, he waited quietly there.

Ten minutes later, Lynn saw Sirius coming out of the entrance of the secret passage. Sirius was holding a sharp knife in his hand and heading towards Hogwarts Castle.

Sirius kept recalling the main content of this operation, and he did not notice that the secret passage behind him that was about to be closed was opened again, and then closed automatically.

After Sirius left, Lynn quickly entered the secret passage and arrived at the Shrieking Shack.

The Shrieking Shack is where Sirius finally revealed his identity in front of Harry and confronted Peter Pettigrew who had turned back into human form. In order to ensure that the final plan goes smoothly, Lynn plans to take advantage of Sirius's absence to bury some alchemical arrays in the Shrieking Shack and cast some special magic.

Lynn's eyes turned to an abandoned training dummy in the Screaming Shack. The left arm of the training dummy had disappeared, and its body was covered with pits and dents.

Obviously, this training dummy was a teaching tool used by a former Defense Against the Dark Arts professor. It was later abandoned because the training dummy was too damaged and could not withstand magic with greater destructive power.

Lynn waved his wand gently, and obscure syllables came out of his mouth.

After a while, a gray ball of special magic from hell appeared at the tip of his wand.

Lynn pushed the wand forward, and the ball of gray magic flew forward and sank into the body of the abandoned training dummy.

Suddenly, a faint blue will-o'-the-wisp fire ignited in the eyes of the training dummy. It stood up from its original position and saluted Lynn with its only remaining right arm.

"Go back to your original position and disguise yourself. Do not act without my order!"

Lynn gave the training dummy an order in a calm tone.

As Lynn's voice fell, the training dummy carried out Lynn's order without hesitation. It returned to its original position and fell down. Even the two balls of blue ghost fire in its eye sockets gradually went out.

Perhaps only the faint fluctuations of magic within the training dummy's body could allow Lynn to be sure that the training dummy still had a soul and was not dead.

After giving the training dummy a soul, Lynn waved his wand again, and golden threads intertwined in front of him.

Long before coming to the Screaming Shack, Lynn had replaced the Demonic Authority with a new concentrated magic crystal. Now the magic power he could mobilize was enough for him to set up the alchemy array he wanted in the Screaming Shack.

One after another, alchemical arrays of either offensive or defensive type were being crafted on the floor of the Screaming Shack, while several golden threads of amplifying alchemical arrays that could complement the previous ones were engraved on the ceiling.

Lynn whispered an obscure spell and as his wand was waved, a golden light flashed and the alchemical circles in the Screaming Shack sank into the ground, ceiling or walls.

After doing all this, Lynn looked around the Shrieking Shack, and after making sure that there was nothing missed, he followed the secret passage back to the outside of Hogwarts Castle.

…

Just as it should have happened, Sirius broke into Harry's bedroom with a knife and ripped open Ron's curtains, causing Ron to scream in fright.

However, Sirius, who should have escaped at the first opportunity, stared at Peter Pettigrew who was locked in the alchemical cage on Ron's bed. The knife in his hand was raised and lowered, as if he was struggling whether to take this good opportunity to kill Peter Pettigrew, the damn traitor.

Fortunately, Sirius's reason took over. He remembered what Irina said to him in the Shrieking Shack. He put away the knife in his hand and quickly left the dormitory.

Sirius narrowly escaped from Hogwarts Castle, as he was almost caught by the professors because he was in a daze for a few seconds beside Ron's bed.

After Sirius broke into Hogwarts Castle again, not only Hogwarts Castle, but the entire British wizarding world was shocked.

It was hard for wizards in the British wizarding world to imagine that Hogwarts Castle, where Dumbledore, the greatest white wizard of this century, was in charge, would be broken into one after another by the criminal Sirius Black, and even the lives of the students were almost threatened.

This made the wizards turn their attention to Sirius and the case that happened more than ten years ago.

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