'What are they doing in the corridors this late at night' Hermione thought.

Professor Dumbledore didn't bother to go out of his office to wander around the hallway at twenty-five past eleven. He only went outside the corridors if there's something that is important to say or to get, and he would not let everybody do it except for himself. But she wonders why was Dumbledore in a hurry to talk to Professor McGonagall.

She wanted to go but her robes can't. She was locked up on one of the armour's foot. She can't let go even if she can loose it, it would disturb them. She thought Professor McGonagall would get some points if she knew she was nosing to their talk. She leapt silently. Her eagerness pushed her to listen to them and to know what they were talking about.

"Do you have an idea where did she knew that words, Dumbledore?" said Professor McGonagall with a trembling voice.

"I don't know, but I guess..." said Dumbledore in a low voice.

"What?" said Professor McGonagall in a keen voice.

Dumbledore touched his long beard moustache, in a manner of thinking. Then he paused.

He said, "I guess she has read it"

"I know she likes reading, but it's not like that, from where? I think she learned it or heard about it from somebody," she said promptly.

"No one ever knows that that spell ever exist," he said.

"It's been a long time since it's been used."

"If she knows it, I'm sure she also knows the other spells"

"It's very odd for a student to learn that"

"I know, I asked Professor Flitwick about it and he doesn't teach that spells to the students."

"He doesn't even know it either. I'm sure of that"

The voice started to fade slowly. She can't hear it any longer. They are gone. She clasped her hands tightly to her robes. She was shaking. A weird feeling crept on her body. 'They are talking about me' she thought. She got up of her feet but still her robes were stuck up on the armour.

"Losempra" she said, waving her wand to the air.

The robes split. Suddenly a tall young man was standing in front of her. His eyes were fixed at her, gleaming like a light on the dark corridors.