Hogwarts: The Savior's Strong Cousin

A few days later, they decided to set out for a forest that was said to be the habitat of the spirit shadow beast. Deep in the forest, they encountered various difficulties and dangers, but they did not give up.

One evening, they finally saw traces of the spirit shadow beasts by a quiet lake. The creatures walked gracefully by the lake, emitting a soft light.

Harry stepped forward and said softly, "We have no ill intentions, we just hope to get your help."

The spirit beast seemed to sense Harry's sincerity and slowly approached him. Harry felt a warm power coming from the spirit beast, and he knew that this power could help them fight against Cyrus's dark magic.

Hermione and Ron also stepped forward to express their goodwill. The spirit beasts surrounded them, as if they were communicating with each other in some tacit understanding.

Harry felt that the magic power in his body became more stable and powerful under the power of the Shadow Beast. He was full of confidence: "Thank you, we will make good use of this power to protect Hogwarts."

Harry, Hermione and Ron returned to Hogwarts with the power of the Shadow Beast, their hearts full of new hope. However, they did not know that a greater crisis was quietly approaching.

One night, when Harry and his friends were studying new magic strategies in the library, Hermione suddenly found a torn section in a book. She frowned and whispered, "This torn section seems to be very important, maybe about Cyrus Knox."

Harry and Ron immediately came over to take a look. Harry asked in confusion, "Who would tear out such important content? And why?"

Ron's face turned serious: "Do you think it's possible that one of us..."

Before she finished speaking, Hermione nodded: "Yes, Ron. We may have an undercover agent."

This discovery made Harry feel extremely heavy. Who would betray them? He quickly recalled every detail of the recent events, trying to find any suspicious clues.

"We have to be very careful," Harry whispered, "From now on, don't trust anyone easily. We need to find this undercover."

Hermione nodded, "I'll look up more information about Cyrus in the library and see if I can find any clues to the torn out content."

Ron said: "I will keep a close eye on our classmates to see if there are any unusual behaviors."

A few days later, Harry met Luna Lovegood in the corridor. There was a hint of mystery and worry in her eyes: "Harry, I heard some strange rumors. You have to be careful."

Harry felt his heart tighten. "What rumors?"

Luna whispered, "Some people say that Cyrus Knox's men have infiltrated Hogwarts and are planning a big conspiracy."

Harry felt a wave of uneasiness in his heart. "Thank you, Luna. We will be careful."

That night, Harry discussed this matter with Hermione and Ron in the common room. Harry frowned and said in a heavy tone: "We can't delay any longer. We must find the undercover as soon as possible."

Hermione also looked very worried: "Yes, we need more clues to solve this mystery."

Ron sighed, "But it's not easy. We don't even know where to start."

Just then, Neville Longbottom came over, looking a little nervous: "Harry, I have something to tell you."

Harry felt a little doubtful, but nodded. "Okay, Neville, what's up?"

Neville whispered, "I recently discovered that Parvati Patil always appears in places where she shouldn't be, and her behavior is very suspicious."

Harry suddenly felt a complex emotion in his heart. Parvati was their friend. If she was really an undercover agent... He didn't want to believe it, but he couldn't ignore this clue.

"We need to talk to Parvati," Harry said finally.

The next day, Harry found Parvati in a quiet corner. He tried to remain calm and asked, "Parvati, have you noticed anything unusual recently?"

Parvati looked a little uneasy, but quickly covered it up: "No, Harry, what's wrong?"

Harry looked into her eyes, trying to read her mind. "We suspect an undercover agent has infiltrated Hogwarts. Have you heard anything?"

Parvati's expression changed slightly, but she quickly regained her composure: "No, I haven't heard anything."

Harry felt a little disappointed, but he thanked her for her cooperation and turned to leave. He was still full of doubts, and it didn't seem so simple.

In the evening, Harry, Hermione and Ron got together again. Harry told them about the conversation with Parvati, and Hermione fell into deep thought: "If there is really something wrong with Parvati, she can't reveal the flaw so easily."

Ron nodded: "Yes, we need more evidence."

A few days later, Harry accidentally found a book about black magic in the library, which mentioned a spell that could hide one's identity. This made him think: Maybe the undercover agent used this spell to hide himself.

Harry decided to investigate further. He began to secretly observe Parvati's actions and look for more clues. One day, he found a notebook left by Parvati in a hidden corner of Hogwarts. The notebook recorded some strange symbols and spells, which made Harry more convinced that there was indeed something wrong with Parvati.

Harry told Hermione and Ron about his discovery, and they decided to confront Parvati together to uncover the mystery. In the dead of night, the three found Parvati in a quiet room.

"Parvati, we need to talk to you," Harry said straight to the point.

Parvati seemed a little flustered, but she still pretended to be calm: "What is it, Harry?"

Harry handed her the notebook and looked her straight in the eye. "Can you explain what this is?"

Parvati's face turned pale instantly, her hands trembled slightly, but she still tried to defend herself: "I...I don't know what you are talking about."

Hermione said calmly, "Parvati, if you really have a problem, we want you to confess. We don't want Hogwarts to be put in danger."

Parvati was silent for a while, and finally whispered: "Okay, I admit that I did work for Cyrus Knox, but I was forced to do so."

Harry felt a sharp pain in his heart. He looked at Parvati in disbelief: "Why?"

Parvati's eyes sparkled with tears: "My family is controlled by him. If I don't listen to him, they will be in danger."