With extraordinary comprehension, I built a floating city at Hogwarts.

In the end, Ron, controlling the Black Queen, successfully defeated the White King, who removed his crown and threw it at his feet as a sign of surrender.

Having won the game, the white pieces bowed and retreated to make way for them, allowing them to smoothly walk towards the door.

The second challenge team of the Hogwarts Challenge has successfully passed another level and moved on to the next level.

As soon as they entered the gate, the four were hit by a nauseating stench. Left with no other option, Levin cast a [Bubble Head Charm] on each of them.

Then they saw a giant in the room.

This giant monster is even larger than the one Levin killed last time.

But at this moment, it lay motionless on the floor in front of it, unconscious, with a large, bloody lump on its head.

“Great, we don’t have to fight this giant anymore,” Harry said in a low voice.

They carefully stepped over the troll's thick legs, and Harry muttered, "Hurry up, I can't breathe."

“Wait a minute,” Levin called out to the group. “Before we leave, why don’t we guess who set up this obstacle?”

"The gatekeeper is Hagrid's three-headed dog."

Since it's related to potions, this level belongs to Professor Quirrell.

"But is there a problem here?" Ron asked, puzzled.

"Have you ever wondered why, if Professor Quirrell could bring in trolls as obstacles, he was so afraid of them on Halloween?" Levin asked a profound question.

Even he, a time traveler who had read the script in advance, couldn't figure this out.

Hermione and Ron also fell into deep thought.

That makes some sense.

Update [5/4], Bonus Chapter [14/25] (Saturday)

Chapter 76 Logical Reasoning Problems

"We'll find out about this eventually, but right now the important thing is to stop Snape..."

Harry remained stubbornly suspicious of the old bat.

He opened the next door, and the group entered the penultimate challenge of the "Great Challenge of Wisdom and Courage."

Professor Snape's challenge.

Just as the group arrived at the table in the checkpoint, a burst of flames suddenly rose behind them, sealing off the entrance.

The flame was an unusual purple.

At the same time, black flames shot up from the doorway leading to the front.

Soon the group realized they were trapped in the middle of the room.

After carefully observing the room, they confirmed that there was nothing scary about it, only a table with seven bottles of different shapes on it, and a roll of parchment next to the bottles filled with the puzzles for the final level.

Hermione picked up the parchment and read it aloud:

Danger is in front of us, but safety is behind us. Two of us can help you.

Drink them, one leads you forward, the other takes you back to where you came from.

Both contain nettle wine.

The three are assassins, lined up and waiting.

Make your choice, unless you wish to remain here forever.

We also provide four clues to help you choose:

First, no matter how cunningly the poisons hide themselves, they actually stand to the left of the nettle wine;

Secondly, the contents of the bottles on the left and right are inadequate; they won't be of any use to you if you want to move forward.

Third, you'll find that the bottles are all different sizes. Death doesn't lurk among the giants and dwarfs;

Fourth, the second from the left and the second from the right, although they look different, they taste the same.

The bottles on the table are arranged roughly like this: 00o0000 (Readers can try to guess!)

Harry was still completely confused after reading it, and Ron was even more bewildered.

But Hermione blurted out, "Isn't this just a logic puzzle?"

Levin nodded. "I already know the answer."

“Well, it seems puzzles are no problem for you Ravenclaws at all…” Harry said sullenly.

But Levin shook his head: "We solve a puzzle every day when we go back to the lounge, but that's completely different from the puzzle in this level. Ravenclaw puzzles are more like brain teasers and philosophical questions, while this one can be solved with logical reasoning."

“I dare say that even Ravenclaw wizards might not be able to solve all of these kinds of problems. Wizards who have received a Muggle education are better at this. We learned about this in elementary school, didn’t we?”

"Really?" Ron exclaimed in surprise. "Harry, do Muggle primary schools teach this?"

“I…I don’t know either,” Harry said, almost crying. He only remembered that Dali had bullied him, but he didn’t remember ever learning this stuff.

Levin and Hermione exchanged a glance.

"Shall we do it, or should I?" Hermione asked.

“Come on,” Levin said. It was time for the little witch to get some attention.

“Watch me,” Hermione exclaimed excitedly. She went to the table, faced a row of potions, and began to speak eloquently:

"Since neither the largest nor the smallest is poison, and the second and sixth bottles are the same, we know that the second, third, and sixth bottles are not poison. There is only one antidote, and the only non-poisonous medicine left is Zunma wine. Therefore, we know that the second and sixth bottles are Zunma wine."

"The poison is to the left of the nettle wine, so the first, fourth, and fifth are poison. We can't move forward at either end, and the first is poison, so the seventh must be the medicine to go back. Finally, the third must be the medicine to move forward."

The analysis was reasonable, and Harry nodded repeatedly in agreement.

Even Ron felt an itch on his head, as if he was about to grow a brain.

"So, Harry, you went to a different primary school than them, right?" Ron asked expectantly.

“No,” Harry shook his head, “Levin and I went to the same primary school.”

The difference between people is greater than the difference between people and dogs.

Harry didn't want to dwell on the primary school incident, so he grabbed the third bottle—the very one containing the dwarf from the puzzle.

"This amount of medicine is only enough for one person."

Four of you, look at me and I look at you.

Without thinking twice, Harry grabbed the bottle: "People say I'm the boy who survived by sheer luck, but now it's my turn to face him!"

Harry made a life-or-death decision in such a short time; he is indeed a very courageous Gryffindor.

However, Levin himself didn't plan to drink it.

He had just checked, and the flames weren't Fiendfire—Snape couldn't possibly use such a terrible thing against a young wizard—so he was perfectly capable of passing through.

“Ahem, here’s my suggestion,” Levin coughed to draw everyone’s attention, then said, “Harry, drink the forward potion and go in first. I’ll stay behind and find an opportunity to use magic to break the flames and go in. Ron and Hermione, you drink the backward potion and go back to inform the professors.”

Hermione and Ron exchanged a glance and finally nodded.

"That's all it can do."

"You two, be careful."

So Levin and Harry went to the black flames.

“Harry, remember what I’m saying before you go in. What you see when you go in might not be Snape. At least I’ve never thought he was the mastermind. You need to be prepared for that. Also, don’t think you can defeat him all by yourself. I’m out there, and the professors are too.”

Finally, I wish you good luck!

"Ok!"

Harry took a deep breath, bid farewell to everyone, and gulped down the potion. An icy sensation instantly permeated his entire body. Before the effects wore off, he walked straight into the black flames.

Hermione and Ron also drank the seventh potion, passed through the purple flames, and returned to the previous level.

Levin stood beside the black fire, recalling the spells he knew.

"【Fireproof Halo】"

"[Resist Energy Damage (Fire)]"

"【Elemental Shield (Fire)】"

Despite casting three fire-resistance spells on himself, Levin still felt a scorching heat as he approached the black flames.

"As expected of Snape."

Sure enough, with his skill level, it was still too inexperienced for him to forcefully challenge the design of this master of black magic.

"But what if that's the case?"

With a thought, Levin unleashed the spell he had learned through his druidic lineage:

"【Primal Form】"

The next moment, he transformed into a fire elemental.

"Since I can't be immune to fire, then I'll become a part of fire. What can you do about it?"

Having said that, he stepped into the black fire once more.

This time, his attempt was a success.

The scorching flames couldn't harm him in the slightest.

He easily entered the final challenge of the Hogwarts Challenge.

As soon as he traveled through time, Levin immediately deactivated his transformation and cast an invisibility spell on himself.

He was still inside the doorway, and neither of the two men facing off in the room saw him.

That's good; he doesn't intend to expose himself to Voldemort unless absolutely necessary.

He hid behind the wall at the corner, secretly observing the standoff between the two.

Update [6/4], Bonus Chapter [15/25]

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Chapter 77 May I touch your magic stone?