The seat on the other side of Slughorn was empty, and Regulus guessed it was Professor McGonagall's seat. {We don't write novels, we're just web porters - and right in the middle of the table is the Headmaster, Professor Dumbledore.} His flowing silver-white hair and beard glistened in the candlelight, and his sumptuous dark green robe was embroidered with stars and moons. The fingertips of Dumbledore's two slender hands touched together, his chin resting on top of them, and his eyes looked at the ceiling above through the half-moon lenses, as if in deep thought.

The door to the auditorium opened, and everyone fell silent.

Professor McGonagall led the long line of first-year students to the top of the auditorium. If all three of them were drenched before Yolanda's clean-up spell was cast, it was nothing compared to these first-year freshmen.

Look at them as if they were not on a ferry, but swimming from the lake. They stood in a row along the staff's desks, paused and faced the whole school. They were all shivering from the cold and nervous - except for the youngest boy.

He had long gray-brown hair, his eyes were very sharp, and his whole body was very clean and fresh, and it could be seen that he had applied a new clean-up, and a child who had not yet entered school could cast spells so well, Yolanda finally raised a little interest.

At this point, Professor McGonagall placed a three-legged stool on the ground in front of the freshmen, and placed a tattered, dirty, patched wizard's hat on top of the stool. The first-year students stared at it in amazement. Others looked at it too. For a moment, there was silence in the auditorium. Then a crack near the brim of the hat opened like a mouth, and the hat suddenly began to sing:

That was more than a thousand years ago.

I've just been woven into shape,

There are four famous wizards,

Their names have survived to this day:

Brave Gryffindor, from a barren swamp,

Beautiful Ravenclaw, from the tranquil riverside,

Merciful Hufflepuff, from the open valley,

Shrewd Slytherin, from that quagmire.

They share a dream, a wish,

At the same time, there is a bold plan,

To nurture young wizards into talents,

Hogwarts School was founded in this way.

These four great wizards

Everybody builds his own college,

They are in the students they teach

There are different ideas about the talent valued.

Gryffindor believes that the bravest of the people

deserves the highest reward;

Ravenclaw felt that the minds were the smartest

Always the most promising;

Hufflepuff felt that the most diligent and hard-working

to be the most qualified to enter the college;

And power-hungry Slytherins

I like ambitious teenagers the most.

The four great wizards in their living years

personally pick out the proud protégé,

But when they sleep in the Nine Springs,

How do you select the best in the student pool?

It was Gryffindor who came up with the solution,

He plucked me off his head,

The Big Four have all injected me with thoughts,

From now on, it is up to me to pick and evaluate!

Okay, put me on the head,

I've never looked at it,

I want to look at your mind,

Determine which house you belong to!

After the Sorting Hat was finished, the auditorium burst into applause.

"I really don't know how this kind of runaway song gets applause." Yolanda pouted.

"Every year the song is different." Regulus said, "As a hat, its life must be quite monotonous, isn't it?" I guess it took a whole year to come up with the next song. ”