Osivia did not speak, and she did not blink at Hoffa.

And Hoffa pointed to the Black Lake outside the landing window and said, "I have always wondered why those Lake demons want to cut the ice in winter, but now, I want to understand. Black Lake is the key, the key to connect reality and illusion. "

Osivia turned her head and hurried back to her sitting position.

When Hoffa thought she was going to take the crown, she lifted the silver plate and put a sandwich in her mouth.

She was probably hungry for a long time and felt that it was too inefficient to eat like this. So he turned into a snake and swallowed all the food in one gulp.

Hough looks at her, turning her head to help her forehead, almost unable to make complaints about it.

Then, she uses her tail to hook up the gold ring on the ground and swims to the edge of the small pool in the office, becoming a human.

"To Black Lake?" She asked.

"That's right."

"Come with me."

Osivia stepped directly into the pool and disappeared into it.

Hoffa walked cautiously to the pool of the office, looked at the lake outside the window, and thought that it was probably the secret road directly connecting to the Black Lake.

He took a deep breath and stepped into the pool. With a dull roar in his ear, he seemed to have entered the water speed skating in the amusement park. The body spirals, bends and falls.

Ten seconds later, he rolled into the Black Lake, like a weightless astronaut in space, surrounded by dark green water.

Fortunately, osivia quickly swam over, grabbed his arm, swayed his legs, and quickly went upstream.

The lake was not much warmer in early spring than it was at Christmas. Hoffa held his nose in one hand and osivia's arm in the other. This year is the year when he swims the most. Slytherins are always inseparable from water, which makes Hoffa feel uncomfortable.

He's Ravenclaw. He likes the wind. He likes dry and cool places.

Osivia got out of the lake and stood on the hillside of the Black Lake with Hoffa.

The magic wand dries the water from the body, under the bright white moon in early spring.

Hoffa pointed to the lake and said, "look."

Osivia looked at the lake, only to find that it was too dark at the moment, even the reflection of the school did not exist in it. All over the lake, you can only see the moon in the sky.

"School... What about the shadow of school?" Osivia is unbelievable.

"That's the problem."

Hoffa's tone was slightly excited: "there must be more than one magic of ancient witches, but if there is a mirror, there is no better place than here."

"But I don't know anything about how we're going to get there."

Hoffa thought for a while, an encounter that happened a long time ago came to his mind, and he waved to osivia.

"This way."

Two people walking in the bright moonlight, ice and snow melting after the exposure of the dead branches were trampled off by two people, issued a crackling sound. In the moonlight of early spring, their shadows grow on the ground.

Finally, they stood on a floodplain far away from the castle.

Here, you can see the station in the distance, and you can also see an old-fashioned train waiting at the station. That's the school bus. All the students will leave the school the day after tomorrow.

Hoffa stood on the floodplain, the moon was cold and blue, and the stones on the ground seemed to be coated with a layer of white silver frost.

Looking at the dark lake, he said in a low voice:

"I've been here before. When I was on the train on my first day of school, I came to this place for no reason. When I was here, I saw the chassis of a speeding train. My two friends said it was a dream, or an illusion.

Now, it's not an illusion, it's not a dream. "

Osivia: what are you talking about

As soon as her voice fell, there was a crash on the lake in the distance. A hazy figure came out of the water and floated on the lake. He looked at Hoffa without blinking and waved to them.

Hoffa and osivia looked at each other and walked slowly on the floodplain.

The cold water soon covered Hoffa's feet, his knees, his waist. He stepped on the jagged pebbles, put his palms flat on the water, and stopped.

He was familiar with the figure in front of him. He had just seen it a month ago.

It's a lake demon, with brown hair, charming and soft face, glittering and translucent chest, and huge underwater fish tail.

It's a girl Lake demon. She, like last time, seemed to hear some kind of call and came to Hoffa.

"Are you ready?"

She still asked this time.

But this time Hoffa understood what she meant. It was a vehicle similar to the vanity dolphin, so he asked, "can you take me there?"

"Yes, but I need to be paid."

Lake demon floating on the lake, the voice of ethereal said.

"What's the reward?"Asked osivia. "Do you want us to praise you?"

The lake demon shook his head and looked at Hoffa quietly.

Hoffa: the key, right

He took out his bracelet and coins.

"Wealth, fame, one more thing."

Said the Banshee in an ethereal voice.

Osivia took out the crown.

"Right..."

without blinking, she looked at the crown for a moment. Her long white arms were lifted from the water and put in front of Hoffa. She lowered her head and looked like a queen waiting to be crowned.

Hoffa looked at osivia's crown, took it, held it in both hands, and put it on the head of the lake demon.

Then he took hold of her slender palm, put agraia's bracelet on her hand, and finally put the coin in her palm.

In the dark moonlight, a silent ceremony ended quietly.

The Banshee looked at her three things and nodded with satisfaction. Then she took Hoffa in one hand and osivia in the other.

"Take a deep breath." She said.

"Wait a minute." Said Hoffa.

"What's the matter?" Asked the lake demon.

Hoffa looked seriously at osivia.

"You were like the kamikaze last time. Are you still so crazy this time?"

Osivia was stunned, then sipped her mouth, as if she was tasting something extremely bitter.

She did not speak for a long time, so that the crowned Lake demon frowned impatiently.

Hoffa: "osivia? "

" Hoffa, I'm sorry for half a year. I am not a qualified friend, my character is very bad. And I hurt you more than once. "

Osivia looked up and said seriously:

"but if I can, I hope I can make up for my fault."

Hoffa bent down and covered his mouth.

"Wow, you can say such sensational things. I'm going to throw up." He straightened up and spat at the lake demon.

"Take us. I think maybe I need to wake up in cold water."

The lake demon smiles and leans back.

Immediately, they were pulled into the lake by her at the same time.

In the cold water of the lake, the huge tail of the lake demon swayed, and in a twinkling of an eye, it fell to a depth of tens of meters. The darkness and water pressure around it were so quiet and mysterious.

Hoffa's mouth was bubbling. He looked at the dark abyss under him, but he didn't feel too much water pressure.

He looked behind him and saw the huge tail of the lake demon swinging in the water, above himself.

Wait, is that the top?

Maybe not.

Hoffa turned the whole world upside down, or the world upside down.

At the moment, he is no longer diving, he is rising, rising rapidly and decisively.

There was a bright shimmer in front of my eyes, a light in the dark.

The light is constantly amplified.

WOW!

A water ring, the lake demon with two people out of the water, released the hand.

Hoffa looked around in amazement at what he saw.

The lake here is not black, but presents a hazy white state, they can see the bright stars above. But I can't see the moon.

Around, there is hazy water vapor everywhere, visibility less than 20 meters.

Hoffa knew that he had come to another level of Hogwarts, the mirror world of the school.

"Be careful, he's back." With that in a soft voice, the lake demon turned around and put out a huge spray with the fish's tail, disappearing into the crystal white water at his feet.

Hoffa and osivia look at each other, and they paddle forward slowly. Although Hoffa can't swim, there is a strange magic force on the water to keep him from sinking.

After a while, he met something hard with his fingertips. After fixing his eyes, Hoffa found that he had touched something hard, black, long and thick.

A straight track.

It is like this across the water, coming from the unknown place, and leading to the unknown distance, it is the track that I saw in the inexplicable dreamland when I started school.

He touched the track and looked at osivia.

They climbed up the track slowly. At this moment, Hoffa seems to be back to the beginning of school.

He stood on a huge mirror, with a thick rail in the ripples at his feet.

At this moment, they did not speak. They walked forward slowly with dignified expression.

Along the track, soon after, they saw a dark train carriage standing quietly on the water.

Under the carriage, there is a shimmering white stone. These things look like milky crystal, white but heavy. They form a platform like place piece by piece."Merlin beard."

Osivia sighed softly, "this thing is definitely not built by ancient witches."

Hoffa didn't answer. He weighed his feet and looked into the carriage. The carriage was empty and there was nothing.

"Hoo."

He breathed a sigh of relief and wiped his palm on the wizard's robe. His palm was full of sweat. He pulled out his wand and took back his head.

Out of the car, osivia patted him on the shoulder, pointing to the distance.

"Hoffa, look."

Following her fingers, Hoffa saw a line of black lines in the mist.

When they got closer, they took a breath, and he found that it was not a line at all, but a group of people.

Black people.

These people have no clothes, no movement, no breathing.

They've got their heads down, they've got pure black metal on them, they're a bunch of structures.

They knelt on one knee on the white water, facing in one direction like a pilgrimage.

"Sure enough, I'm hiding here. No wonder no one can find it." Murmured Hoffa.

Osivia grabbed Hoffa and stood in front of him: "be careful."

The two men remained on guard for a long time, but the structures were as motionless as dead objects.

Hoffa looks towards the pilgrimage of these structures, which is in the middle of the White Lake.

A towering white island.

Two people walk up from the rail to this shining white shimmering Island, water drops fall from them automatically.

The island is not big, only about 30 square meters, which is filled with milky white crystals. There are four ten meter high statues around these crystals.

Hoffa recognized the statues at a glance.

Gryffindor with a sword

Slytherin with a jewel

hepatch with a staff

and Ravenclaw with a balance

look solemnly at the center of the island.

There, Hoffa saw a tall white platform, and under the platform, there were a lot of book scrolls.

Hoffa and osivia looked at each other, and she looked at Hoffa pale.

They approached slowly with a look of shock.

Hoffa picked up a random book and looked at the name "eternal life. Blood change".

When you open the page, you can see all kinds of mysterious and sharp red Dharma arrays. The whole book is written in reddish brown ancient English, and the color is like dry blood. Hoffa touched the page, and the touch of his hand made him very uncomfortable.

Hoffa put down this book and picked up another one, taboo. Demon conversion

as soon as he opened it, he saw a ferocious man's face. He was all naked. The pages of the book described in detail the process of human body conversion into demon, and the content made Hoffa's scalp numb.

He put down this book and picked up another.

Put it down and pick it up

put it down and pick it up.

Immortality. Split soul, taboo. Shadow of nightmare, taboo. Devil's call, reincarnation. Disaster of the dead, reincarnation. Fog of corruption, taboo. Spiritual roaming, shadow. Funeral of living witches, shadow. Ghost heavy, etc.

while watching, he climbed up.

The whole hillside is full of such secrets.

The more he looked, the paler Hoffa became.

Finally, he put down his book and stood on the top of the stone platform with osivia, looking at hundreds of taboo magic books under him, surrounded by a stillness like dead water.

There is no doubt about it.

Forbidden library.

Right here.

This place is the paradise of the black wizard. If you take out any book in it, it is enough to cause a violent shock in the modern wizard world. How much ancient dark knowledge is forbidden here.

"And the half king?" Osivia asked Hoffa in a weak voice.

At this time, a gentle and hoarse voice came from behind them:

"the four founders want to destroy all these forbidden techniques. They thought it would end the conflict between people. Naive idea, in fact, conflict is the eternal melody of mankind. "