Running the secret method of wind, a cool energy slowly flowed into the body, and the magic power that had reached the bottleneck actually increased a little.

"Come here, it's safe." Falling to the ground, Charlotte beckoned to the three of Hermione.

Then, he turned to look at the heavy wooden door in front of him, it was not ordinary, it had neither a handle nor a keyhole, but was covered in intricate scripts.

"Can any of you tell what's depicted on this?" Charlotte didn't look back and asked directly.

Although he used the word "you", he was actually just testing Hermione's knowledge, as for the Savior and Weasley...... Forget it, let's not talk about it.

"These ...... It's supposed to be ancient magic texts, I can't recognize them all, and it should be the history of Hogwarts. Hermione looked at the magic text on the door and said thoughtfully.

"That's right, it's about the Big Four founding of Hogwarts. So," Charlotte waved her wand and left four lines of handwriting on the door, which also belonged to the ancient script, "to open the door, the only way to open the door is to write the names of the Big Four in the ancient script." ”

As soon as the four-line font was written, the heavy wooden door opened silently.

Clearly, Charlotte's answer was correct.

It's very Lavancloau!

The next room was pitch black, and nothing could be seen. But as soon as they stepped inside, the room suddenly became brightly lit, illuminating a shocking scene.

They stood on the edge of a huge chessboard, in front of which were black pieces, all taller than them, carved from black metal, and glittering in the light. At the other end of the room, facing them, were some equally metallic white chess pieces.

It's an endgame, with black at a disadvantage and white at the top.

As soon as the four of Charlotte stepped into the room, the chess pieces immediately came to life. They all turned their heads to look at them—though they didn't have any features.

However, the fierce aura on these chess pieces is not weaker than that of the great knight, and it is a very good set of alchemy items.

In the field of alchemy, the current Charlotte can be said to be a master or above, and the legend is not yet full. It can be said that except for Nicolame, the other alchemists in front of him are basically elementary school students.

Therefore, he can rightly comment on Professor McGonagall's alchemical works.

"What now?" Harry whispered.

"It's not obvious?" Ron said, "We had to play chess to get to the other end of the room." ”

They saw a door behind the white pieces.

"What's the deal?" Hermione looked at the chessboard silently, she didn't know much about wizarding chess.

"I'll do it." Ron was a little elated, he was the best at wizarding chess of the group, "We have to act as pawns, and then ......"

"I don't think it's so much trouble, let's just go over there." Charlotte shook her head.

The peachwood wand pointed forward, and a gray mist instantly condensed in the air. All the chess pieces and chessboards didn't even have time to react, and they all turned into granite-like stones.

Then, Charlotte waved her wand again, and all the granite boulders changed again, all of them turned into tan muddy water, collapsed, flowed to the ground, and in a few seconds, condensed into dry earth.

Watching Charlotte turn these sturdy chess pieces into dirt in a matter of seconds, the three of them were all shocked.

“…… Well, it's a little easier. Ron wiped his eyes vigorously, as if to prove that none of this was a hallucination, and Harry also widened his mouth before nodding sullenly.

"Let's go, I don't know what else awaits us." Charlotte waved at them, and then took the lead across the road that had turned into yellow mud and walked towards the exit ahead.

"What do you think will happen next?" Harry hurried to catch up with Charlotte.

"Wouldn't you just go in and have a look?" Charlotte said casually and walked into the third room.

It was a Minotaur, no, the king of the Minotaur, it should be said!

It was several times stronger than the other Minotaurs, about fifteen feet long, with more monstrous muscles, and the horns on its head coiled three times before reaching the sky. It's faster, and its dual resistance is higher, and even the Grand Wizard has a lot of trouble trying to solve it.

None of that matters, though.

For he had fallen to the ground and was a dead body.

"It's a killing curse!" Charlotte said as she felt the familiar fluctuations of magic.

"Great, the Dark Lord has finally done a good thing...... Well, I mean, we don't have to fight this minotaur anymore. Ron clapped.

Then, after running two steps, he came to the opposite door and pulled the next door open.

For a while, Ron couldn't believe that the next level was so "simple".

There was nothing in the room, except a table with seven bottles of different shapes lined up.

Seven bottles contain seductive liquids that seem to contain endless magical powers, each revealing a mesmerizing color.

"Snape's potion." Harry said, "What should we do?" ”

As soon as the four of them crossed the threshold, a flame rose from behind them, sealing the doorway. The flame was unusual, purple. At the same time, black flames burst out from the doorway to the front, and they were trapped in the middle.

"Look!" Miss Xueba grabbed a roll of parchment paper that was placed next to the bottle. Charlotte stood behind her and read with her.

"Danger is in sight, safety is in the rear. Two of us can help you.

Drink them down, one will lead you forward, and the other will send you back to where you came. Two were filled with nettle wine, and three were killers, waiting in line. Choose, unless you want to be here forever. We also provide four clues to help you choose:

First, however cunning the poisons may be, they are always on the left side of the nettle wine; Second, the contents of the bottles at the left and right ends are different, and neither of them will work for you if you want to move forward; Thirdly, you will find that the bottles are of different sizes, and that there is no Grim Reaper hidden in the giants and gnomes; Fourth, the second on the left and the second on the right, although the appearance is different, the taste is the same. ”

"Hahaha~ I didn't expect Professor Snape to have such an interesting time!" Charlotte laughed with some interest.

Harry and Ron looked at each other, not understanding what the parchment meant.

Hermione let out a long sigh and smiled, "Very simple analysis questions, I did a lot of interesting questions in Muggle schools at school, I mean. ”

"Many wizards are too superstitious about their own powers, they don't think about the nature of power, and they don't even like to use their brains. This is also the reason why although there is a steady stream of elite wizards and great wizards in the wizarding world, there are fewer and fewer alchemy masters and potions masters! Looking at Harry and Ron's somewhat confused eyes, Charlotte said something on the side.

The Savior and Ron looked at each other in silence, both pondering over what Charlotte had said.

At this time, Miss Xueba clapped her hands happily and picked up the smallest bottle among them: "This bottle of potion can help us pass through the black flames and get the Philosopher's Stone." ”

Charlotte looked at the little witch who seemed to ask herself, smiled and nodded. Seeing her boyfriend's encouragement, Hermione raised her head triumphantly.

"There's only enough for one person to drink," Harry looked at the potion in the bottle, "less than a sip." ”

"That's it." Charlotte turned to Hermione and Ron, "This magic won't work for me, but don't risk it!" ”

He picked up a round vial on the far right, which was full of blue potions: "Honey, you and Ron use this vial to go back to the Gryffindor dormitory and wait for our news." I'm following Harry to protect the Philosopher's Stone! ”

Seeing that Ron was about to speak again, Charlotte said, "Harry is the savior after all, he will be fine!" ”

Hermione's eyes were red, the situation was so precarious, she couldn't even be with her boyfriend, she could only go back and wait for news, she once again hated her humble strength.

The young lady stepped forward and hugged her boyfriend: "Charlotte, you must protect yourself, I am waiting for you to come back!" ”

"Of course! Have you forgotten my strength? Charlotte smiled softly, kissed the little witch on the forehead, and handed the potion over.

"You must be careful! Ron and I went back first. Hermione looked at Charlotte reluctantly, took a sip from the round bottle, and handed it to Ron.

Ron took the bottle from Hermione's hand, tilted his head and drank it, "Good luck and be careful......"

Before they could finish speaking, the two disappeared.