What agency.

"Well, this time it starts with you, Hannah."

Elena raised her right hand, snapped her fingers, and summoned four small writing tablets.

As she spoke, she distributed the writing pad in her hand to each little witch and explained seriously.

"Each of us recorded the wishes in our minds and the appearance of the corresponding room. After the test was over, we went back to the dormitory to summarize. For example, just now: 'The place where things are hidden', 'The Room of Requirement - Recycle Bin',

Scene description…”

What Hogwarts, or the wizarding world, lacks is not profound magic, nor outstanding witches and wizards.

What most wizards lack is scientific logical thinking.

Science has never been opposite to magic, or even on the same level.

What is quite ironic is that if we look closely at the origins, wizards are the first people in human civilization to be involved in scientific concepts.

Whether it is the alchemists in the Middle Ages, the magic masters in earlier times, or even the ancient wizards who were called prophets, shamans, wizards, witches... and many other names in the early days of human civilization, they have always been

Exploring and deciphering the laws of this world.

What Elena is doing now is just to let the torch of human wisdom radiate the light of magic again.

As for the starting point of recovery, it is naturally a certain scientific Hogwarts.

"So what do I start? Well, I want, um... a place to store a lot of wine?"

Under Elena's encouraging gaze, Hannah walked back and forth along the corridor three times, imitating the white-haired dumpling she had done before.

The next moment, the door that had just disappeared silently reappeared before their eyes.

They looked at each other, stretched out their hands, and turned the brass handle.

“Wow, incredible”

Hannah stepped into the room and was shocked to see the completely new room inside.

The cathedral-like space filled with clutter a few minutes ago disappeared.

Instead, there was a long and narrow wine cellar that stretched as far as the eye could see, with a faint aroma of wine permeating the space.

Guru

Hannah's throat rolled a few times, and she looked at the rows of wine barrels with some greed.

As the future heir to the Leaky Cauldron, her instincts were telling her how delicious the wine was.

"Ahem, you can't drink. Minors are not allowed to drink."

Elena glanced at Hannah who was about to move, raised her finger, and said with a serious face.

"Except for Christmas Day, I can't do it the rest of the time. I don't want to be caught by Professor Dumbledore smelling of alcohol. By then, we are all screwed. Even if we won't be imprisoned, the consequences of suing the parents may be even worse.

,right?"

"Well, okay"

Hannah reluctantly moved her eyes away from those attractive-looking wine barrels.

"Then let's start checking and recording, shall we? I have experience in this. I have occasionally helped with inventory before."

According to the previous plan, in addition to summoning different rooms, they also had to explore them.

While walking back and forth in the wine cellar, they wrote carefully on the writing board.

"Record: 'Place where wine is stored', 'Room of Requirements - Wine Cellar'."

"Estimated storage capacity of wine..."

"Occupied area..."

…………

Half an hour later.

Hallway at the entrance to the Room of Requirement.

"Well, let me take a look...the library, the magical animal battle station, the breeding room, the magic classroom, the small playground..."

Elena read the records on the writing board one by one, and tapped the quill thoughtfully on it.

Just like her previous guess, the Room of Requirement can faithfully realize most of the conventional scenarios.

Even though the "Fantastic Beasts Battle Station" sounds a little strange, after describing their wishes several times, under the influence of the unknown magic of the castle, they finally completed the record as they wished: a Quidditch pitch that is almost as big as a Quidditch pitch.

Such a huge Colosseum.

On the other hand, Elena has almost figured out the rules of the Room of Requirement.

First of all, wizards cannot limit or require the contents of the Room of Requirement, they can only request the function of the room.

For example, if they want to reach the "Room of Requirement - Wine Cellar", they must go through "Looking for a place specially designed to store wine" instead of "I want to go to a place with wine".

This also puts an end to Elena's attempts to summon nuclear reactors, planetary engines and the like.

Secondly, the Room of Requirement cannot respond to some vague, subjective special wishes.

The simplest example is that the Room of Requirement cannot appear in a room that exudes a high concentration of love potion, nor can it create a "scary" room. The Room of Requirement cannot understand any wish that involves subjective feelings.

Of course, it will still appear as a door.

But inside is a relatively strange room, such as a potion brewing room, or a dark room without light.

Finally, and at the same time the most core point: what the Room of Requirement "reads" is the most original idea.

Or more accurately, primitive desire.

"Human desires have no limits. Even the simplest ones, quantitative changes will lead to qualitative changes."

Elena looked at the white wall with a playful expression, and the little devil in her heart began to flap its wings and wag its tail involuntarily.

Perhaps, she can start trying some more complex and difficult "wishes".

But let’s start with those simple wishes that are reasonable but a little difficult, and then gradually narrow the scope...

Elena wrote seriously on the writing board:

"I need a place that is large enough to dock, repair, and maintain the Hyperion Battle Group."

Great! It’s not broken!
Chapter completed!