After Slughorn finished speaking, before Hoffa could ask more questions, he pushed his shoulders and pushed him out of the room.

After walking out of the office door, Hoffa couldn't help but look back at the Potions Professor's door.

From an attitude point of view, the Potions Professor does not seem to agree with Fatir. But to rise to the level of exterminating mankind is too exaggerated. Moreover... Hoffa feels that some of Fatir's words are still

Quite reasonable.

Taking the bottle of mermaid potion, Hoffa returned to the shore of the Black Lake.

Here, nearly a hundred young wizards and witches in swimsuits and trunks are lying here and there.

They were all wet, some were coughing water, some were holding their arms and shivering, and some had already lit a fire and were keeping warm by the fire.

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

She was pale and trembling, with a few water plants stuck in her mouth. She vomited a large amount of lake water as soon as she landed.

There is no doubt that these are the students who failed Professor de Lasese's test.

Hoffa felt sad. He glanced at the potion in his hand and thought that he couldn't swim at all. If the potion was not as good as he imagined, he would have to go back to school to learn about those mechanical potions and herbal medicines.

Worked.

He uncorked the bottle.

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

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

He looked at his body and saw that there seemed to be no change.

He blinked and realized something was wrong. His eyelids changed from closing up and down to opening and closing left and right.

He walked to the lake and looked down.

This sight almost startled me. His eyes had enlarged at least three times, and there were faint golden lines intertwined around a black vertical pupil. They were not human at all.

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

Changes gradually appeared on Hoffa. The hair on his head became tangled together, forming gray soft tentacles. A thin webbed palm appeared between his fingers, and a wide patch of hair appeared under his ribs.

wide film.

Suddenly, cheek holes appeared under his neck, a feeling of suffocation surged up, and his vision quickly blurred.

He could no longer see normally, and out of a completely irresistible instinct, he jumped into the black lake.

At this moment, he truly felt what it meant to be like a fish in water. Different from the despair and fear when he entered the water last year, now he felt as warm as amniotic fluid, as if he had returned to the most primitive placental state.

The oxygen dissolved in the water passes through the capillary walls in the gill filaments and exchanges gas with the blood, allowing him to breathe exceptionally smoothly.

Those eyes that were unusually blurry on land can now clearly distinguish any object within a hundred meters away from him.

Blue lines appeared on his back and chest, and his skin began to secrete some unknown substances, making him extremely sensitive to the surrounding sensations.

A small yellow croaker slowly swam past Hoffa's eyes. The pupils in Hoffa's eyes were moving, but his body was as motionless as a rock.

At this time, the instinct in his blood made him eager to try. He opened his mouth full of sharp teeth, grinned to his cheekbones, and swallowed the small fish into his throat.

Then reason defeated instinct again.

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

He opened his mouth again and spit out the fish.

The little yellow croaker was frightened and ran away from Hoffa quickly.

He turned his head and looked ahead. He kicked off the ground and rushed out like an arrow. Sticking to the fine white sand on the ground, his spine swayed from side to side, and he swam hundreds of meters away in an instant.

This feels great!

Hoffa pushed again.

The speed increases again.

The bubbles and water flow were left far behind, and the purple Morat tentacles on the rocks at the bottom of the lake were frightened and quickly retracted into the shell.

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

Because the speed was so fast, he even had the leisure to observe the various scenery around him.

The sun shines all the way to the bottom of the lake thirty feet underwater. The light is refracted and deformed as if passing through a prism. The rocks, germs, shells, corals and some unknown magical creatures on the bottom of the lake change slightly in color when exposed to this refracted light.

, showing colorful light. Various tonal combinations are intertwined, creating a beautiful image of red, orange, yellow, green, blue, and purple.

A hundred meters away, the lake water was black and blue. Hoffa's eyes penetrated the strange gray lake water and looked at the black shadow in the distance. The lake water there was dark and hazy, and a vague outline of a huge octopus was waving in the black lake.

Tentacles.

Above him, countless students swam with difficulty. They could not reach Hoffa's depth because the water pressure was too high.

Seeing the crowds of people swimming above using all kinds of magic, Hoffa had a sudden idea. He kicked off the ground, went up, and stopped less than one meter away from the water. There happened to be a man on top accompanied by a school of fish.

Girls swimming.

He was lying face up in the water comfortably, leisurely admiring the bodies full of youthful vitality one after another in the water.

He felt comfortable, but when a girl who was paddling hard lowered her head and saw the extremely weird mermaid face under her body, she was so frightened that she almost lost her soul.

"ah!!!"

This scream instantly triggered a chain reaction. The students crossing the lake noticed something strange and looked down one after another.

The entire Black Lake felt like it had exploded.

The fish jumped up in fear, and various magic spells floated around. The magic spell entered the water and turned into boiling water columns.

Hoffa deftly avoided all kinds of curses. He touched his face, couldn't help but laugh, and pushed the extremely frightened girl out of the water. Then he disappeared at the bottom of the lake in a blink of an eye and continued his deep diving journey.

After staying away from the frightened crowd, he came to the center of the black lake. Here, the scenery in the black lake began to change, it began to become darker, and the lake became deeper and deeper.

Here, Hoffa saw some relics of the shipwreck, including iron kitchen utensils, anchors, iron chain rings on the tackle, mortars, fragments of astronomical instruments, and a section of the stern railing, with dark green lake bottom plants growing on them.

.

Not only that, among the forest-like towering algae vegetation at the bottom of the lake, Hoffa also saw some rusty and deformed cages floating among the algae, with some long-rotten bones inside.

Some of the bones had their limbs chained up by iron chains, and they looked like they were all human beings.

This scene made him feel ominous.

At this moment, he was close to the huge octopus in the black lake. It was waving its tentacles like a dense forest at the bottom of the lake.

At this time, there was a student in the distance who probably had a cramp from exhaustion and sank straight to the bottom of the lake. Immediately, a long tentacle passed across Hoffa's face.

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

This scene made him feel so scared that he quickly stepped aside and quickly twisted his body to swim forward. But the huge octopus did not look at Hoffa. It closed its eyes and had countless tentacles floating in the air.

in water.

If it senses that a student is drowning, its tentacles will extend out, pick up the student, and push him back to the shore.

As he swam directly above it, Hoffa saw the bottomless, layered sharp mouthparts of this majestic creature. It was like a black hole. Even in the form of a mermaid, the mouthparts made Hoffa panic.

.

This creature has almost infinite surging magic power. It shouldn't be here, it should live in the sea. Maybe the Black Lake is just a pond to it.

After passing through the lake bottom jungle composed of octopus tentacles, Hoffa's speed gradually increased, and he caught up with students one after another. Finally, he flashed across the bottom of the lake like a torpedo, leaving behind a series of bubbles.

Half an hour later, he swam more than fifty kilometers and reached the other end of the Black Lake. At this time, the effect of the potion on his body gradually disappeared.

The shore of the lake was close at hand. He climbed onto the grass wetly, and his body gradually disappeared due to the changes in the potion.

Here, a few senior students are panting and resting on the grass. A few students are very professional in moving their muscles and adjusting their condition. They are all among this group of Hogwarts students.

The most advanced existence.

Miranda and Aglaia were arranging their hair on the grass, talking intermittently. When they saw Hoffa emerging from the water, they were both startled.

At this moment, Hoffa has not fully recovered his human form, and his body has a lot of characteristics of cartilaginous fishes.

After being stunned for a long time, Miranda asked: "Is that your new transformation technique?"

"No." Aglaia glanced at Hoffa, "Mermaid potion."

"Well." Miranda immediately showed a smile, "What is the mermaid potion, please tell me."

Aglaia reflexively wanted to give a long speech and show off her rich knowledge of potions, but when she saw Hoffa looking at her, she suppressed her desire to speak and turned to look at the lake.

Miranda made a face at Hoffa and shook her head helplessly.

At this moment, the changes in the medicine on Hoffa's body have almost disappeared, his eyes have returned to their normal human state, and the surrounding scenery has gradually become clearer.

This side of the lake is very, very far away from Hogwarts, and the castle can hardly be seen. However, here, you can see patches of giant boulders and the endless mountains of Scotland.

Hoffa often looked here from a distance when he was in the Ravenclaw common room, but this was the first time he actually came here.

On the grass not far from the lake shore, there were two tables covered with large canvases. The surface of the tables was slightly raised, and it was unknown what was covered underneath.

On the grass next to the table, the young-looking Professor Fatil de Lasese was leaning on a boulder and puffing away. He neither chatted with his daughter nor the students who had successfully crossed the lake.

.
To be continued...