Hogwarts: The Savior's Strong Cousin

"You have done very well." Dumbledore said admiringly, "But you must also understand that with great power comes great responsibility."

Harry nodded, his heart full of determination and confidence. He knew that the next task would be more difficult, but he had found his heart and found the courage and strength to be fearless.

In the following days, Harry, Hermione and Ron continued to train and study at Hogwarts. Not only did they have to deal with the threat from dark wizards, but they also had to deal with various problems and challenges within the school. Every action was full of risks, but they never backed down, because they knew that only by moving forward can they protect everything they love.

One night, Harry stood alone on the top of the Hogwarts tower, looking at the starry sky in the distance, his heart filled with mixed emotions, he felt a huge sense of responsibility and pressure, but also full of hope and determination.

Harry found his friends, Hermione and Ron, at the long table in the Great Hall. Hermione frowned, holding a heavy magic book in her hands, as if studying something, while Ron kept looking around, looking a little restless.

"Do you feel it?" Harry whispered, "There's something wrong here."

"Of course I felt it," Hermione closed the book and said softly, "I heard that some strange things have happened in the school recently. Several students disappeared at night, and some mysterious symbols appeared on the wall."

Ron nodded and added, "Some people say they saw ghosts, but they weren't the kind we usually see. They looked more like... how should I put it, more like cursed souls."

Harry couldn't help but feel a little uneasy. He knew Hogwarts had always been a mysterious place, but these changes made him feel more dangerous than ever before.

Just then, Professor McGonagall came over, her expression more serious than usual. "Harry, Hermione, Ron, the headmistress wants to see you. Now."

The three looked at each other, full of doubts, but still followed Professor McGonagall to Dumbledore's office. The gargoyles automatically made way for them, and they walked into the familiar room. Dumbledore was sitting behind his desk, staring intently at a roll of parchment on the table.

"Children, please take a seat," Dumbledore said, his voice still gentle, but Harry could hear the urgency in it. "I am sure you have noticed that something unusual has happened in the school."

"Yes, Professor," Hermione responded immediately, "We heard about some missing students, and about the mysterious symbols."

Dumbledore nodded, motioning for her to continue.

"We need your help," he looked them straight in the eye. "There is a huge conspiracy behind these events, and I believe you can find the truth."

Harry felt a sense of responsibility. He nodded and said, "We'll do our best, Professor."

Over the next few days, Harry, Hermione, and Ron began their investigation. They visited the missing students' dormitories, trying to find any clues. Hermione found some strange traces that seemed to be some kind of ancient magical symbols.

"These symbols look like some kind of summoning spell," Hermione explained, "but I'm not sure exactly what they do yet."

At the same time, Ron found a book about an ancient curse in the library, which mentioned a kind of black magic that could control the soul. This discovery made them more alert because it meant that they were facing an extremely dangerous opponent.

One night, the three of them noticed some unusual movements on the edge of the Forbidden Forest. They decided to venture into the Forbidden Forest to look for more clues. Deep in a dark forest, they met a mysterious wizard who claimed to be a member of the dark forces.

"You will never find out the truth," the wizard laughed sinisterly, "Hogwarts is under our control."

Harry felt a chill, but he pretended to be calm and tried to get more information from the wizard. However, the wizard suddenly disappeared in a black mist, leaving behind a mess.

After returning to the castle, Harry, Hermione and Ron told Dumbledore what they had discovered. The headmaster thought for a moment and said, "It seems we need more help. This enemy is stronger than we thought."

In the following weeks, Harry and his friends kept running around every corner of Hogwarts, looking for any possible clues. They worked closely with professors and also sought help from the Order of the Phoenix. Every step was full of dangers and challenges, but they never gave up.

One night, Harry saw a huge dark forest in his dream, and in the middle of the forest there was a huge altar, which was engraved with those mysterious symbols. He woke up from the dream and realized that this might be the key they were looking for.

The next day, under the guidance of Dumbledore, they went to the place that appeared in the dream. The altar really existed, and around it, Harry felt a strong magical force. They began to interpret the symbols and try to crack the secrets.

As time went by, they discovered a shocking truth: these symbols were portals to another world, and dark forces were trying to invade Hogwarts through this portal.

They decided to take immediate action to seal the portal. However, when they began to cast the spell, a familiar figure appeared before them - Voldemort.

"You have come at the right time," Voldemort sneered, "Today is the end of Hogwarts."

Harry drew his wand and started a fierce battle with Voldemort. Hermione and Ron tried to complete the magic of closing the portal. Every step they took was full of obstacles, but they did not retreat.

At the last moment, Dumbledore appeared, and his magical power fought against Voldemort, buying precious time for Harry and the others. Finally, Hermione completed the sealing magic, the portal closed, and Voldemort disappeared into the darkness.

The peace of Hogwarts was only temporary. Although they successfully closed the portal of the dark forces, Harry still couldn't erase the uneasiness in his heart. He knew that the disappearance of Voldemort did not mean the end of the threat. Whenever it was late at night, Harry would always dream of the battle, Voldemort's cold smile and the endless darkness.

On a rainy morning, Harry sat alone in the Gryffindor common room, looking out the window at the heavy rain. His mood was as heavy as the weather. Hermione and Ron came over and sat beside him.