Harry Potter stood in line in the front hall of Hogwarts, and the professors of various colleges were directing them to welcome demstrom's exchange students. Although Harry had a bad impression of the school, the blessing of Thomas Ford, which was firmly linked with the dark magic in Harry's mind - "the students there won't be people like Malfoy!"

Harry asked Ron in a low voice. Ron whispered, "it's a pure blood school... I can't imagine hundreds of Malfoy together. It must be a nightmare."

Hermione was also quietly listening to their conversation. When she heard the speech, she hit Ron hard in the back. Ron was hit by her and complained to her in a low voice, "what are you doing?"

"I'm trying to stop you from talking too much!" Hermione scolded secretly.

"Demstrom is one of the three magic schools in Europe. It enjoys a remarkable reputation in the wizard world and is also a friendly school of our school. It is recorded in demstrom: the palace of duel that although this school teaches black magic, its students have no prejudice against Muggle and mixed race wizards. They learn black magic only because of tradition."

"Many Hogwarts seniors have forged sincere friendships with demstrom students... This can be read in the origins of the top three in the library."

Ron grumbled discontentedly twice until the person next to him stopped and said, "stop! Something is approaching. It should be demstrom's exchange student! Did you hear anything?"

Harry listened attentively. A strange sound floated from the dark, mixed with the sound of waves and inhalation, just like bubbles passing through the vortex formed by the water flow and sucked into the bottom of the lake. A faint, bone chilling cold filled the air. The Black Lake in front of him suddenly steamed with fog. At the beginning, the thin layer on the lake was filled with the whole lake in the twinkling of an eye.

The moonlight in the sky was obscured by the fog. With the fog, a faint and graceful song came from the bottom of the lake.

The senior students began to make a commotion. Someone whispered, "is this the fish man singing in the Black Lake?" soon, the senior students retorted: "the fish man's song can't come out of the water, and the language used in the song is not fish man language... Is it the sea demon siren?"

"Lake!" Lee Jordan pointed to the lake below and shouted, "look at the lake!"

Harry's position could clearly see the lake. Although it was covered by fog, the fog was not so thick this time. Like the mist in the morning, he could still see more than half of the lake. At this time, the lake water had been surging, the smooth lake surface was billowing, and a series of bubbles came out of the center of the lake, Then the sound of breathing came out again - the calm lake had set off three feet of waves against the shore.

In the center of the lake, a huge vortex is forming.

The whirlpool stirred the bottom of the lake, and Harry could see a frightened Fishman turning up from the side of the whirlpool. The ferocious and sharp toothed monster had coral grass hair close to its face, ferocious and frightened. It seemed to be struggling out of the whirlpool and stretched out its claws to the Hogwarts students - but it was dragged down like someone pulled it down, Disappeared on the water.

"Don't worry... Fish people won't drown in the water!" Pomona looked at the students with a nervous face, smiled and comforted them.

But Harry heard... Since he entered the spirit world through the magic spell in the Golden Book of the sun, he found that his senses had changed beyond the normal wizard. He could hear the sound of water crashing against wood under the waves of the lake, as if there was a ship hidden there, and the board and keel creaked, Then Harry heard the breaking of the bone involved.

In his mind, it seemed that a mass of flesh and blood with bones and scales tore between the keel and ribs.

The tentacles of the giant squid in the Black Lake whipped out from the lake. It could be seen that it was extremely frightened and almost disappeared at the edge of the vortex like running for its life. Several grindillo water monsters screamed - at this time, even the professors felt uneasy!

Just when the students in Hogwarts were in turmoil, the bow of a galleon protruded from the water below the water, just like a great white shark raising its ferocious head to peep at the sea. Then the rest of the ship rushed out of the lake like a flying ship with surging fog and fierce waves, It was a black Spanish galleon - it rushed into everyone's eyes.

"Cool!" yelled the Weasley twins first.

Harry felt a slight pain, even... Fear, from the scar on his forehead. The ship seemed to be dead. It came fiercely towards Hogwarts castle, but there was no light on the ship in the dark. A vague shadow stood on the bow of the ship. He was thin and wearing a black robe. He could only see a vague shadow in the dark.

The mist had unknowingly dispersed, and the moonlight shone on the ship. It looked strange and skeleton like, like a repaired waste ship. Through the moonlight, Harry finally saw the situation on the deck. The demstrom students who came to communicate stood quietly on the deck, just behind the shadow of the bow. They were silent, and the moonlight was as stagnant as a dead man.

Harry deeply felt that the scene was strange and unpredictable. The Wizards of demstrom above... To be fair, it was like ghosts.

After a while, they heard the splashing sound of the anchor being thrown into the shallow and the creaking sound of the deformation of the wooden board - the familiar sound of Harry. He saw the broken ghost ship open its belly and expose the rotten keel at the bottom of the ship. The keel and ribs creaked like a door shaft without oil, Harry saw a huge crack in the bottom of the ship like a big mouth, and the broken deck and keel were staggered like sharp teeth

Harry stepped back in horror and looked at the black big mouth. He thought whether it was the big mouth that swallowed something, and his ears remembered the sound of flesh and bone rubbing against the board - creak

The people above got off the ship!

They are not as terrible as Harry imagined, just like monsters, but on the surface they look like a group of ordinary little wizards. They are tall and generally similar to Harry's strongest classmates. Harry is like a chicken compared with them - the key is that girls are the same. They are taller, but not so shaped.

When the exchange students of demstrom came closer and the light in the front hall could be seen, Harry found that their figures were tall because they wore thicker fur cloaks. The professor leading the way was unexpectedly young, and he was an oriental like Zhang Qiu.