A magical journey that begins in Azkaban

Snape took out two magical plants with large green leaves. Rogge read about this plant in "Magical Aquatic Plants of Highland Lakes and Their Characteristics": Gillweed.

"Hey, it seems Black Lake has decided to leave." Rogge said a moment of silence for himself.

"What is the use of gillweed?" Snape took water, dragon scales and other materials and processed them one by one.

"Swallowing a piece whole can cause webs to grow between a person's fingers and toes, and temporary gills to grow on the neck." Rogge replied quickly.

"If I remember correctly, you are going to Black Lake to collect water weed, right? Do you think it can be used directly?"

"I feel that as a potion master, you cannot use raw materials directly, because it is a shame!" Rogge spoke righteously and gave a perfect answer based on the ideas instilled by Snape.

"Although gillweed has miraculous effects, it can only last for one hour. Professor, please forgive me, swallowing gillweed is like a pig snorting in the trough."

Rogge watched as Snape poured water into the copper cauldron, then adjusted the fire to medium and heated it until it boiled.

Carefully pour the chopped gillweed leaves into the boiling water and stir clockwise for ten minutes until the liquid in the crucible emits green gas.

At this time, add the sea dragon scale powder and stir clockwise until the scale powder is completely dissolved.

Rogge noticed that Snape had lowered the fire, leaving only a flame the size of a soybean. He stirred the potion gently and let it simmer over low heat.

A full fifteen minutes passed before Snape stopped. He removed the cauldron from the fire, and when the potion cooled completely it turned a sea blue.

"Before school ends tomorrow, hand over ten waterweeds." Snape threw a backpack over and drove Roger out.

After leaving the dungeon, he quickly opened the traceless expansion pack, which turned out to be processed troll materials.

One glass jar contains the troll's snot, and the other smaller one contains its eyeballs. The troll's skin was also treated very clean by Snape, and there was no odor at all. Other miscellaneous things were piled inside, and the giant monster head was processed into a specimen, which was very suitable for hanging.

Unfortunately, Snape didn't give any ingredients for the fish gill potion, so Roger had to use his crooked brain: go to the professor's office to borrow some.

As for taking the secret passage to Hogsmeade, it is absolutely forbidden to violate school rules. Even if there is, others forced me to do so!

The Black Lake is too big and there are too many creatures in it. Just what Roger found in the library were mermaids, giant squids, grindylows, and man-eating eels. That's all. The key is that Rogge didn't find the location of the water wave grass.

Ask Snape? Rogge shook his head and must have been sarcastic for a long time before speaking. Why not ask the approachable Head of Hufflepuff, Professor Sprout.

"Oh, little Roger, come on, come on!" Professor Sprout was handling the plants in the greenhouse. When he saw Roger, he quickly pulled him in.

"Try to feel the fragrance of the soil and the whisper of the plants." Professor Sprout pressed Roger's hand into the soil and asked him to close his eyes.

The soft soil was like a mother's embrace, and Roger slowly relaxed under the embrace of the soil. He smelled the fresh mint fragrance in the greenhouse, heard the sound sleep of the Radman grass, and even felt the sadness of the hellebore.

"Professor, this seems to be another world." Rogge closed his eyes, enjoying this feeling.

"Yes, little Roger. The generosity and warmth of Mother Earth, the bright sunshine and the vitality of the plants." Professor Sprout was very happy that Roger could experience it. She always believed that this smart child had such a talent. .

She has a special affection for Rogge from Azkaban. She can also see the rich darkness in his heart, but she can also see the unyielding struggle in the darkness.

"Sunshine and soil, we are all children of the earth." Rogge laughed. If he could, he would also like to live a life of sitting in a rocking chair under the vines and sleeping with Yumi in his arms.

"Professor, can you give me some gillweeds? Professor Snape asked me to collect waterweeds under the Black Lake." Rogge opened his eyes and asked.

"Waterweed?" Professor Sprout frowned. She put the flower shovel aside and said angrily: "Waterweed is at the bottom of the black lake, on the mermaid's territory."

"Sirens?" Rogge couldn't help but think of mermaids, but the mermaids in the Black Lake were very ugly.

"Little Roger, don't be deceived by fairy tales." Professor Sprout warned Roger, using his fingers to outline the image of the mermaid family on the soil.

"Their skin is as rough as withered radman grass leaves, and their noses are big and broad." Professor Sprout drew a section of dorsal fin on their backs, and then gouged out two eye sockets.

"The yellow eyes are particularly big, and there are fangs like sharp teeth. Although they are different from us, they are still human." Professor Sprout popularized this knowledge and made Roger understand that reality is different from fairy tales.

"Human? A human like this?"

"Of course!" Professor Sprout nodded and explained why they were counted as human beings: "In the initial definition of the Ministry of Magic, creatures that can speak human languages ​​are humans."

"Later, the standards were broadened to include mermaids. Unfortunately, mermaids were unwilling to be listed with dark creatures such as banshees and vampires, and gave up the opportunity to become 'human'."

"The Black Lake on the campus is huge, and the mermaids only occupy a small area. Even so, they have their own school and community."

"Little Roger, they are very wary of wizards. I'm going to find Snape..." Sprout was very dissatisfied with Snape's actions. Even graduates may not have the courage to go down. It's so irresponsible to let first-year wizards go now!

"Professor, don't worry, my spell is so powerful that I'm not even afraid of trolls!" Rogge waved his wand to tell Sprout not to worry.

He also added: "Professor, think about it, mermaids live under the Black Lake. If they really hurt the students of the school, the principal and the Ministry of Magic will not let them go."

"Maybe I can make some fish-man friends."

"Okay, little Roger." Seeing Roger's firm attitude, Sprout brought five or six gillweed plants from another greenhouse.

"Bring these with you. Each one will allow you to stay underwater for an hour. If you decide to go down, it's best to have your friends keep an eye on the shore. If necessary, we can rescue you in time." She no longer objected. Rogge’s decision, but also gave his own suggestions.

"Thank you, Professor!" Rogge took the gillweed and hugged Trout gently, "I will definitely give you one as a souvenir when the time comes."

On the evening of the next day, Rogge came to the lake with the prepared potion. Hermione was busy with her homework, so she had to ask Daphne to help her keep an eye on the shore. She had a charmed rope in her hand, and the other end was tied around Rogge's waist.

"Do you really want to go down?" Daphne took Rogge's clothes and asked worriedly: "Otherwise, tomorrow, it will be so dark that you can't see anything."

"Daphne, don't worry." Roger took off his shirt, revealing his strong muscles.

"My eyes are like an owl, I can see things in the dark." Rogge opened the glass bottle and swallowed it while enduring the smell of Houttuynia cordata.

The potion turned his legs into fish tails, and his black hair grew rapidly until it reached his shawl.

Daphne looked at Roger's changed appearance and exclaimed: "Oh my God! Roger, you have become a mermaid!"

"I know!" Rogge looked at the fish tail on his lower body and cursed Snape in his mind: "The fish gill potion was promised, why did he drink it instead of something else?"

In fact, Snape never said what it was called, and the gill potion was just Rogue's own imagination from beginning to end.

"Blue sea dragon scales and gillweed, I should have thought of it a long time ago!" Rogge regretted it, and the little girl next to him stretched out her hand to fumble around on his fish tail.