The Gryffindor students gathered at the entrance to the common room were denied access due to the disappearance of the fat lady, and of course, they didn't need to go in.

Dumbledore, who had come here to check on the situation, directly asked them all to gather in the Great Hall, including the students of the other three houses.

Ten minutes or so after the Gryffindors arrived at the Great Hall, the Ravenclaw, Hufflepuff, and Slytherin students also arrived one after another, everyone was confused, and some were even called over when they were ready to rest.

"The teachers and I need to conduct a full search of the castle." Dumbledore walked up to the platform and spoke, not loud but resounding through every corner of the Great Hall, while Professors McGonagall and Flitwick closed all the doors of the Great Hall.

"For your own safety, I'm afraid you'll have to spend the night here. I want the prefect to guard the entrance to the auditorium, and I entrust the presidents of the male and female student councils with the management. If anything happens, report it to me immediately, and send a ghost to deliver the message. ”

His last words were addressed to Percy, who was standing there smugly.

Before leaving, Dumbledore waved his wand and conjured up hundreds of fluffy purple sleeping bags. "Sleep well." With that, he walked out and closed the door.

Although Dumbledore had told him, the students of the other three houses except Gryffindor still didn't know what was going on, only that there seemed to be some danger in the school.

The Gryffindor students, who knew what had happened, told the students of the other houses with whom they had a good relationship about what had happened, and those who were told went to tell the others, and for a moment, there was a commotion in the auditorium.

Dissatisfied, Percy shouted, "Everybody's in their sleeping bags!" Hurry up, don't talk anymore! Lights out in 10 minutes! ”

Ordinary students can go to sleep directly, but Ios and other prefects can't. They were divided into two groups, one for the first half of the night and the other for the second half of the night.

After all, the prefect is also a human being, so it's impossible not to sleep all night, and it's not an all-night game, how can he have such good energy? Besides, even if they can stay up all night, it will seriously drain their energy and energy, which is not conducive to dealing with emergencies.

For example, if Black does come, how will they brace themselves to deal with him after staying up all night? Is it possible to fight a war of attrition with more people? That's looking for death, right?!

Back to the point, after being on duty in groups, Ios was assigned to guard the first half of the night, guarding all the entrances to the auditorium with the other prefects, except for the ghosts who didn't need to rest.

It must have been ten minutes before Percy suddenly exclaimed, "Now turn off the lights!" I ask everyone to get into their sleeping bags and stop talking! ”

As soon as his words fell, all the candles went out. However, the auditorium was not completely dark, and the wandering silver ghosts emitted a faint light, which gave the impression of a little moonlight.

The enchanted ceiling looks almost indistinguishable from the real starry sky, and the stars on it seem to twinkle and twinkle, making the sleeping students feel as if they are camping with their classmates.

Ios was leaning against a pillar and relaxed, knowing that Sirius Black's target was Ron's mouse, Peter Pettigrew, who wasn't going to be here tonight to kill Harry Potter.

Of course, even if the plot goes on a rampage, Sirius is actually Voldemort's younger brother in this real world, and it doesn't matter that Harry's parents were indeed betrayed by him.

As long as he dares to come, Ios will dare to beat him into a dead dog.

At this moment, a tall female ghost floated over, Ios raised an eyebrow, Helena Ravenclaw, Rowena Ravenclaw's biological daughter.

"Miss Gray, I don't know what's the matter with you?"

"You're guarding here, I thought you'd be searching the castle with the teachers."

As the ghost of Ravenclaw, how could she not know the strength of Ios. Honestly, she had seen quite a few talented students over the millennium, but even among them, Ios was the best, and no one could match it!

"The professors aren't here, so it's better to have someone to guard here." Ios said seriously, but in fact, he was lazy. Professor Flitwick had wanted him to search the castle with them, but he had refused on this ground.

Just kidding, the castle is so big, how many places do you have to run and how much time does it take to search it? Standing here is his limit, and you want him to run around? There are no doors!

Of course, although this was just an excuse he came up with, it seemed to make sense to these people who didn't know the truth, Sirius Black was a ruthless person who could escape from Azkaban, and it was really not reassuring to be without a teacher.

So, both Flitwick and Helena were convinced by him that it was really necessary for him to stay here. Helena, who stopped talking about it, didn't leave, and just floated around Ios and chatted with him.

Helena's greatest wish was to become a wiser and better witch than her mother, so she was driven by this psychology to steal the Ravenclaw crown.

Becoming a ghost after death made her no longer obsessed with it, but she was still a true Ravenclaw, and her thirst for knowledge was not erased even after her death.

But after a long time, those ordinary knowledge can no longer attract her, so she will always approach those excellent students to see if they will have some interesting or brilliant opinions, which will add color to her boring life.

Ios was undoubtedly an excellent subject, and Helena was always inspired by something new than he had ever seen before, and his insights were completely beyond those of today's wizards, not in terms of knowledge, wisdom, or the like, but in terms of vision.

His vision is not limited to the current almost stereotyped magic system, but faintly jumps out of this system without completely departing from it, as if a new seedling has grown from it.

Although the seedlings are still weak, they may one day grow into towering trees, and she is looking forward to seeing how far this spirited young wizard can go.

Time passed slowly as Ios and Helena chatted, and he was pleasant compared to the professors who searched everywhere and had to come back every hour to check on the situation, though he couldn't sleep.

By the time he and the others had changed shifts, nothing had happened here, and the unquiet night had come to an end when he opened his eyes again.