13 September 1991; Almost being eaten alive

Today we had our first Flying lesson. Together with Slytherins.
It was not easy to get a broom into my hand but somehow I managed it. Poor Neville got on his broom too early and fell down so Madame Hooch took him to hospital. Then Malfoy found his Rememberball and moked Neville in front of Slytherins. But Harry wanted to get the Rememberball back. How foolish!
He chased Malfoy and then professor McGonagall appeared. Harry was too fool to chase Draco...I thought he will get expelled but later that day I heard that he became a seeker for a Gryffindor Quidditch Team.
I also heard that he is planning to meet the Slytherin boy in the midnight for a duel. And I decided to stop him. He is really fool! I don't understand his behaviour. Obviously he wants to loose all of our points or he wants to get expelled. I had to stop him.
At the midnight he appeared in the common room together with Ronald. So I followed them, pointing at the school rules, warning them about potentional expulsion but they didn't listen. When I wanted go back to the common room, the Fat Lady was gone!
I had to join the boys and pray for not getting caught.
In the Trophy room we noticed that Malfoy didn't plan on duelling Harry. Because Mrs. Norris arrived in the room and we had to run away, hide ourselves.
So we were running to the unknown corners of the castle till we appeared in the very odd chamber.
And there...was a giant three-headed dog standing on a trap door. Before he could swallow us, we got out there really quick.
Meanwhile finally Fat Lady arrived back to the portrait.
I left boys for a sleep some minutes ago and I'm still catching my breath.
There is only one thing - the three-headed dog is watching over something. There was a trap door!
But whatever it is - I only want to go to sleep right now.