Slughorn finished speaking, and without waiting for Hofado to ask, he pushed him by the shoulders and pushed him out of the room.

After walking out of the office door. Hoffa couldn't help but glance back at the Potions professor's room.

Judging by his attitude, the Potions professor didn't seem to agree with Fatil. But to rise to the level of extinction of human beings, this is too exaggerated. And...... Hoffa felt that some of Fatil's words were quite reasonable.

With the mermaid potion in hand, Hoffa returned to the shores of the Black Lake.

Here, nearly a hundred young witches and wizards in swimsuits and swim trunks lie on the ground.

They were soaked, some were coughing water, some were shivering with their arms in their arms, and some had already started a fire to keep warm by the fire.

As he watched, another huge octopus tentacle stretched out in the lake and threw a limp girl onto the grass on the shore of the lake.

She was pale, shivering, and had a few weeds stuck in her mouth. As soon as he landed, he vomited a large stream of lake water.

There is no doubt that these are students who did not pass Professor Drazes' test.

Hofa looked at the potion in his hand and thought to himself that he couldn't swim at all, and if the medicine wasn't as good as he thought, then he would have to go back to school to work on the mechanical potions and herbs.

He uncorked the bottle.

There was a pungent smell coming from the bottle, which smelled like a fish carcass had been rotting for three days.

Hoffa pinched his nose suspiciously, tilted his head and took a sip of the liquid from the bottle.

He looked at his body, and it didn't seem to change.

He blinked, realizing that something was wrong. His eyelids closed from top to bottom, to left and right.

He walked to the lake and looked down.

This look almost startled him, his eyes had grown at least three times larger, and the faint golden lines in them were intertwined around a black vertical pupil, which did not look like a human at all.

He tried to close his eyes, but found that he couldn't, and he could only control a circle of film to rub back and forth on his eyelids.

The changes gradually appeared in Hoffa's body, and the hairs on his head were tangled together in strands, forming gray soft tentacles. A thin webbed palm appeared between his fingers, and a wide film appeared under his ribs.

Suddenly, a cheekhole appeared under his neck, a feeling of suffocation swelled up, and his vision quickly blurred.

He could no longer see things normally, out of an instinct that was completely irresistible. He leaped into the black lake.

At this moment, he really felt what it meant to be like a fish in water. Unlike the desperate fear he had when he entered the water last year, he now felt warm like amniotic fluid, as if he had returned to the most primitive placenta state.

The dissolved oxygen in the water exchanges gas with the blood through the capillary walls in the gill filaments, allowing him to breathe unusually well.

The eyes that were unusually blurry on land could now clearly distinguish anything within a hundred meters of him.

Blue lines appeared on his back and chest, and his skin began to secrete some unknown substance, making him extremely sensitive to his surroundings.

A small yellow croaker slowly swam past Hofa's eyes, and the pupils in Hofa's eyes turned, but his body remained motionless like a reef.

At this moment, the instinct in his veins made him jump, and he opened his mouth full of sharp teeth, grinned to his cheekbones, and swallowed the small fish into his throat in one gulp.

Then reason triumphed over instinct.

No, I'm a human, not a fish!

He opened his mouth again and spat out the fish.

The little yellow croaker was frightened and fled from Hoffa's side as soon as possible.

He turned his head and looked ahead. Kicking the ground, he rushed out like an arrow, clinging to the delicate white sand on the ground, his spine shook from side to side, and he swam out of a distance of hundreds of meters in an instant.

It feels amazing!

Hoffa pushed harder.

Speed up again.

The bubbles and currents were left far behind, and the purple Morat tentacles on the reef at the bottom of the lake were frightened and quickly retracted into the snail shell.

Like a torpedo, Hoffa effortlessly caught up with the large crowd in front of him.

Because of his speed, he even has the leisure to observe the various scenery around him.

The sunlight shines on the bottom of the lake 30 feet underwater, and the light is refracted and deformed like a prism, and the reefs, germs, shells, polyps and some unknown magical creatures at the bottom of the lake are illuminated by this refraction light, and the color changes slightly, showing colorful light. The various color combinations are intertwined, and a beautiful image of red, orange, yellow, green, blue, and purple is colorful.

A hundred meters away, the lake was black and blue, and Hoffa's gaze pierced through the gray and treacherous water, looking at the dark shadow in the distance, where the lake water was dark and hazy, and the silhouette of a faint huge octopus waved its tentacles in the black lake.

Above him, countless students swam with difficulty, they could not reach this depth of Hoffa, the water pressure was too great.

Seeing the crowd swimming with all kinds of magic above, Hoffa had a whim. He kicked the ground, ascended, and stopped less than a meter near the surface of the water, where there happened to be a girl swimming in the company of fish.

Face up, he lay comfortably in the water, leisurely admiring the youthful and energetic bodies in the water.

He was comfortable, but a girl who was paddling hard lowered her head. Seeing the extremely strange mermaid face under him, he was so frightened that he almost lost his soul.

"Ah!!h

The scream set off a chain reaction that caused the students who crossed the lake to notice something unusual. They all looked down.

The whole black lake is like a frying pan.

Schools of fish leap in horror, and all sorts of spells float around. The spell entered the water and turned into a boiling column of water.

Hoffa deftly dodged all sorts of spells, touched his face, and couldn't help but laugh, pushing the frightened girl out of the water. Then he disappeared to the bottom of the lake in a blink of an eye and continued his diving journey.

Away from the frightened crowd, he came to the center of the Black Lake, where the scenery in the Black Lake began to change, began to turn dark, and the lake became deeper and deeper.

Here, Hoffa saw the relics of a shipwreck, including iron kitchen utensils, anchors, chain links on the pulley, mortars, fragments of astronomical instruments, and a stern railing on which dark green lake-bottom plants grew.

Not only that, but among the algae vegetation at the bottom of the lake, which towered like a forest, Hoffa saw some rusty and deformed cages, floating among the algae, and some of the white bones that had long since decayed.

Some of the bones were chained to their limbs, and they all looked like they were human.

The scene struck him as ominous.

By this moment he had approached the giant octopus in the black lake, waving its tentacles like a dense forest at the bottom of the lake.

At this time, a student in the distance, probably cramping with exhaustion, sank straight to the bottom of the lake, and immediately a long tentacle crossed the side of Hoffa's face.

Although there was not much sound, he could see the dense suckers and barbs on the tentacles.

The image made him panic, and he deftly moved out of the way, quickly twisting his body and swimming forward. But the super-giant octopus didn't look at Hoffa, it had its eyes closed, and countless tentacles floated in the water.

If a student is perceived to be drowning, the tentacles will extend out, roll up the student, and push him back to shore.

As he swam directly above it, Hoffa saw the majestic creature's bottomless, layered sharp mouthparts. Like a black hole, even in the form of a mermaid, that mouthpart made Hoffa panic.

This creature has almost infinite magic in it, it shouldn't be here, it should live in the sea, maybe the black lake is just a pond for it.

As he made his way through the jungle at the bottom of the lake made of octopus tentacles, Hoffa's speed gradually increased, and he caught up with one student after another. Finally, it flashed like a torpedo from the bottom of the lake, leaving behind a series of bubbles.

Half an hour later, he swam more than 50 kilometers to the other end of the Black Lake. At this time, the effect of the potion on his body gradually faded.

The shore of the lake was so close that he soaked wet onto the meadow, his body disappearing from the potion mutation.

Here, a few sporadic senior students are panting and resting on the grass, and a few students are very professionally moving their muscles and adjusting their state. They are all the top Hogwarts students in this batch.

Miranda and Aglaia were arranging their hair on the grass, talking in a bud, and they were shocked to see Hoffa emerge from the water.

At this moment, Hoffa has not fully regained his human form, and his body bears the characteristics of a large number of cartilaginous ichthyosths.

After a moment of astonishment, Miranda asked, "Is that your new Transfiguration?"

"It's not. Aglaia glanced at Hoffa, "Mermaid Elixir." ”

"Hmm. Miranda immediately showed a smile, "What is a mermaid potion, you tell me." ”

Aglaia reflexively wanted to make a tirade to show off her vast knowledge of potions, but when she saw Hoffa looking at her, she forcibly suppressed her desire to speak. Turning his head to look at the lake.

Miranda grimaced at Hoffa and shook her head helplessly.

The changes in the potion on Huo Fa's body at this moment have almost disappeared, and his eyes have returned to their normal human state, and the surrounding scenery has gradually become clear.

This side of the lake is very, very far away from Hogwarts, and the castle is barely visible, but here you can see patches of giant cobblestone. There are also the rolling hills of Scotland.

Hoffa often looked out from afar when he was in the Ravenclaw common room, but it was the first time he had actually visited.

On the grass not far from the shore of the lake, there were two tables covered with large canvases, the surface of which was slightly raised, and I don't know what was covered underneath.

On the grass next to the table, the young-looking Professor Fatil D'Drages, leaning against a cobblestone, was mist, not talking to his daughter or to the students who had successfully crossed the lake.

He looked at the sky, and his whole person was in a state of negative nothingness to the extreme, as if his spirit had been swallowed by something.

After about another thirty minutes, another group of wizards who had successfully crossed the lake crawled out of the black lake out of breath, numbering about a dozen, and as soon as they reached the shore, they collapsed to the ground, their chests heaving violently.

At this moment, Professor Dartses stood up and walked through the crowd to the shore of the lake, staring at the surface of the lake without squinting.

It was getting dark, and no one came to the lake.

A crossing ceremony eliminated 90 percent of the people, and less than 10 percent remained.

Drazes, who looked at the shore of the lake, sighed deeply, extinguished his cigarette, rubbed his temples with a painful expression, and finally, he turned around and clapped his hands.

At this moment, the moonlight was born, and the lines of Professor Drazes' face seemed to soften in the moonlight, and Hoffa realized that he and Aglaia were strikingly similar in the contours of their faces. Except for the different eye colors, he is almost like his daughter's twin brother.

"Are you tired?" he said, hoarse but soft.

The crowd didn't answer, just looked at him directly, wondering what lesson he was going to come up with.

"You guys are very good, and the people who have been able to get here must have found some unusual pleasure in crossing the lake just now. In every lesson I've taken since then, you've had to learn to deal with chaos and the unknown. ”

He waved his wand, and dots of light flew around, illuminating the grass on the shore of the lake. The shadows of all are on the ground, and the shadows of the elders are long. There was a rustling sound on the wooden table behind him, and the magic curtain slowly opened.

With an exclamation from the student, Hoffa's pupils shrank, and yes, he saw nearly ten juvenile fire dragons, curled up on a row of wooden tables, spitting smoke from their mouths and noses.

Fatil looked proud: "Dragon." One of the apex predators in the wizarding world, the fastest way to become an elite creature is undoubtedly to observe the apex predator and grow with it. ”