Chapter: The diary!!

Hello my name is Maya I am 16 years old and go to a girls school.
I share my room with my best friend Chika (16). We have known each other since the sandpit era. It was more of a coincidence that we came to this school together.

At our school there are also some of the students who are always alone because something bad was spread about them or simply because they are different. Of course there are also the better ones, in short, who think they are better because they have more money. But I don't belong to any of them because I don't want to have anything to do with them (I'd rather be with Chika). Alice is one of the better ones, and I don't get along with her very well (we often bitch each other).
I'm not bad at school, but not good either, but I make an effort.

Ok, that was the most important thing now. But I actually want to tell you a story that happened to us (Chika & Mir).
It was a normal day at school until Alice decided to finish me off today.Shortly before the first lesson, Alice and I were drinking (screaming and whatnot) when our teacher suddenly stood in the door with an angry red face. When she was finally done with the moaning, she gave us both a 10-page essay.

In the evening after dinner, Chika told me that there was supposed to be a cave with books under the school, they could help me with my essay, she would also go underneath with me. So we decided to meet at midnight tonight.
11:55 p.m. - Chika had a card from Gellende to help us with.
We had been on the road for a few minutes now, finally we were standing in front of an old rusted door that said no entry. Of course, we had stolen the bunch of keys from the caretaker beforehand. We could get in there pretty easily that way. As we went down the stairs only a few cobwebs came towards us. Then we stood in front of a huge gate.With a little strength we managed to postpone it. And there we stood in a huge cave with many shelves in which books were stored. It was very dark, dusty, cold and greedy. Luckily there were a couple of candles there. Chika went straight to the shelves (I had the feeling that she wanted to come down here earlier). Suddenly she called! I ran up to her and what did I see? A very old dusty flying book. I was frightened. It slowly came towards us it started to glow as if it wanted to tell us something (at that moment I was glad that the books couldn't speak). As it got closer you could see that it was a diary and so the curiosity was aroused immediately.

Chika and I must have been thinking the same thing at this moment, and what is in this Mysterious Book?